What is the width of a 1959 pontiac rear end? Pontiac labeled theirs Safe-T-Trac while Oldsmobile called it Anti-Slip. The Rochester Quadrajet carburetor was featured on the top spec GTO. (Rear Wheel Drive) +20 offset. to change without notice. jack39rdstr # 169783 04/02/10 02:03 PM. well i have 1 from f 150 82 b/plate 2 b/plate it is 58". How To Box-In a Differential / Solid Axle Rear-End Housing; . find the 1/2 ton size yoke on a dana 60. This method will work but the wheels are always trying to roll away and tip over making it very hard to check for clearance and be sure that your measurements are correct . A little history: In 1957, three important axles were introduced: Ford's 9-inch, Chrysler's 8.75-inch, and GM's 9.3-inch Hotchkiss-style axle for Pontiac and Oldsmobile. cars 6" - 8" for large cars, '71 Colt Some of the most frequently asked questions regarding the Pontiac/Oldsmobile 9.3-inch rearend: A: Fabcraft Metalworks provides virtually every component for the Pontiac/Oldsmobile 9.3-inch rearend. In 1958 a good thing got better when limited-slip differentials were offered. Rear-end track width measurements of classic American cars including Chevrolet, Ford, and Mopar vehicle rear axle widths. Add Width to compensate for drums as follows: 4" - 5" for small cars 5" - 6" for intermediate cars 6" - 8" for large cars . Your Nova should be the same as 67-69. 0 For a variety of reasons, not the least of which is the current Gasser craze, Pontiac and Olds rearends are enjoying renewed popularity. By designing ring-and-pinion sets to fit the previously less-attractive, but more available, Series II OE carriers, performance ratios could now be utilized without the need for an unfavorable ring-gear spacer. pontiac rear end width chart. A: Starting in 1937 Pontiac and Oldsmobile rearend designs slowly began to converge, to the point that in 1957 all major components were virtually interchangeable, with the exception of some brake components, suspension attachments, and axle housing/axle widths. The 1967 Firebird has the particularity to have a rear axle held by arms while in 1968 rear axle was hold only by the blades/spring of suspensions. Casting # Year: Body: Size: Notes: 2070051: 1960 - 71: A . The other drawback is that you can only check for clearance at the height the jack stands are set to. Because OE components were still widely used in racing circles, the 9-inch gained traction as a viable alternative, superior to the newer, cheapened, integral-style axles using C-clips and flimsy internals. 455 ho only(c-type axle) 12 bolt 1970 3.36 cok col fb 1970 3.55 cow cox fb 1970 3.55 wv xv gto 455 ho only(c-type axle) 12 . Aftermarket support followed in the form of beefy axles, gears, spools, couplers, and Mickey Thompson's aluminum and magnesium centersections. '67 Lincoln, '69 Dodge Dec 20, 2007. Terms of Service. Look at the RPO codes. Roadkill Customs has evolved from local hot rod shop to online how-to magazine for budget-minded do-it-yourself hot rod builders and enthusiasts. 0000015097 00000 n Another factor that made these rearends popular was the wide selection of factory gear ratios available, 2.56:1 through 4.30:1 while even lower drag racing cogs were available from aftermarket suppliers. 1957-58 are 29-spline and 1959-1964 are 31 spline. It's not to the same level as a concours-correct restoration; no judge will deduct points for an incorrect paint code. All Pontiac Firebird 2nd-gen. Trans Am Coupe versions offered for the year 1977 with complete specs, performance and technical data in the catalogue of cars . Quick question, I'm looking at a '50 Pontiac and was wondering if it had a torque-tube or a driveshaft. While the Ford 9-inch is the perceived benchmark of popular rearends today, in stock form the edge would go to the Pontiac/Olds. '67 Chevrolet big car Valves. The following is a general With its larger bearings, larger gears, and larger axles, the P/O 9.3 would fall somewhere between the Ford 9-inch and the Dana 60 in terms of strength. '69 Oldsmobile 88, '72 Chrysler Rim Width Measure from the inside of the outer lip at the bead seating point to the inner lip. Compared side-by-side with the Chrysler, it boasted stronger gears and larger bearings. Jeremy. I placed the order with Speedway motors in late July for my rear end housing and Currie axles. 5D med-duty 4-pinion. And yet, all too often, a beautiful gasser built today is sitting on top of a Ford 9-inch axle. 5E med-duty 4-pinion. '72 Cougar . If in doubt, consult one of our differential experts at (800)510-0950! Approximate rear end widths measured from backing plate to backing plate. I just measured my 60' Pontiac and it is the same as my 62' Pontiac. . The most common GM unit for the 1982 to 1992 Camaro is the Saginaw style 10 bolt Chevy differential. S10. All but a few of the old factory limited-slips had been gathered up and beaten to death. Axle Images: Axle Details. The simple cure when using wide tires with a stock-width rearend was to radius the fenders and let the tires hang out in the breeze. Its role in drag racing was limited to primarily Stock, Super Stock, and Factory Experimental Fords. 20 0 obj<>stream Six rib cases will be found on '57 and '58 rearends, '59-64s have seven ribs. Many Ford 9-inch parts are made offshore; they have smaller bearings and smaller diameter gears requiring less material. var u='http://50chevy.freeservers.com/cgi-bin/sitestats.gif?p='+escape(location.href)+';r='+escape(document.referrer)+';t='+t.getTime(); Roadkill Customs has evolved from local hot rod shop to online how-to magazine for budget-minded do-it-yourself hot rod builders and enthusiasts. Wilwood Engineering designs and manufactures high-performance disc brake systems. I came up with a cheap simple method to confirm the results of the measurement taken with the loose wheels. '70 Dodge, '71-77 Maverick stock from flange to flange it is 60 ". With a maximum top speed of 112 mph (180 km/h), a curb weight of 2672 lbs (1212 kgs), the Fiero GT has a naturally-aspirated V 6 cylinder engine, Petrol motor. The following tags will show a 4L80E transmission as an example. lx ?ZXj^|\\(|ka(XKIg#+ * Ring #s GM 40 13 == 67 - 8 - A. Drag Racing 101 ~ Everything You Need to Know! Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory. Suspension Width (Flange to Flange), Ford Mustang II/Pinto & There is no point in mocking up the wheels to a width that in not commercially available or one that was never provided by the OEMs unless you are planning on spending a lot more money on a custom width housing and axles. Your differential is the set of gears that allows your vehicles driven wheels to revolve at different speeds by splitting your engine torque in two directions, An Online Magazine for DIY Hot Rod Builders. It is now late November and I still do not have my axles. Mercury Capri/Bobcat, Monte Carlo, Regal, etc. Plywood pieces work well for shims. '72 Cougar, '74 Pontiac, '49 Plymouth, '61 Chevrolet Impala Ford Mustang Complete 9" Rear End Packages, GM G-body 78-87 Complete 9" Rear End Package, GM Chevy S10 82-04 Complete 9" Rear End Package, GM Tri 5 55-57 Chevy Complete 9" Rear End Package, GM X-Body Nova Complete Rear End Packages, Axle Bearings, Retainer Plates, & Wheel Studs, Bearings, Differential Parts, Seals, & Hardware, Master Cylinders, Caliper Kits, and Parts. Source for tire and wheel application fitment data. 0000006068 00000 n Yes the axles were special in that I wanted to use a 28 spline center section already had rather than buy a new 3rd member to suit the 31 spline axles that Speedway stocked. note 64 64 axle is same. No one is making new 31-spline side gears at this time, which is not good. I used 5" long lag bolts to hold the end pieces of wood on which permitted me to add up to 1.5" of shims to each end. '69 Nova This reduced weight and eliminated the stock suspension, producing a spacious engine bay that eagerly accepted the chosen powerplant. '67 Mustang Six , '68 AMX NFTs Simplified > Uncategorized > pontiac rear end width chart. The '70 to '81 Camaro rear end is 61 inches. Floor jack permits you to raise and lower wheels to check for clearance. getting back to the differential, why bill didn't cover 1956 i don't know, might have just been a typo or overlooked. manufactured by Pontiac in United States. Rear Suspension Width (Flange to Flange), Donor Vehicles Front and Rear BOP, Pontiac, Each. While not as strong as a race-dedicated spool, the 31-spline Trophy Track carries a potent arsenal, including six 9310 alloy gears and twin cross-shafts, all of which are dimensionally larger and stronger than anything offered previously. In searching the web I found the following links that have a massive of information on rear end widths and wanted to share. 53.6 -- 1971-'77 Chevy Vega, 1973-'77 Pontiac Astre, 1975-'80 Chevy Monza, Buick Skyhawk, Olds Starfire, 1976-'80 Pontiac Sunbird 112.0 coupe; 116.0 sedan,wagon, 61.5, 60.7 -- 1973-'77 Oldsmobile Cutlass, 442 GM 7.75" (Australian - Some 3rd Gen Camaro/Firebirds) GM 8.0" - Rear - Late Model Midsize Truck Ring Gear Diameter: 7.75" Ring Gear Diameter: 8.0" Pinion Diameter / Spline: 27 Pinion Diameter / Spline: 1.781" / 27 Ring Gear Bolts: (8) Ring Gear Bolts: (10) 7/16"x20 LH Cover Bolts: 9 Cover Bolts: 10 Carrier Breaks: 2.77 / 3.27 Carrier Breaks: None We carry everything from the 7.25" IFS front end parts, to the large 11.5" rear end parts for 1-ton trucks.We make it easy to verify your exact rear end by providing specs and year, make, and model applications for . Rear-end questions. The power is transmitted to the road by the rear . Prices and availability are subject Mickey Thompson even produced aftermarket Olds and Pontiac magnesium gear cases that were frequently used in dragsters. Needle BUILD IT YOURSELF - PARTS LISTS BUSHINGS TO ADAPT TUBE SIZE . '70 Nova 70 2wd 6 lug rear end 12 bolt Possible gear ratio's 3:08, 3:40, 3:73 70-81 4wd 6 lug reared 71- Newer 2wd trucks use a 5 on 5 lug pattern 71-76 Full Size Cars " "" "" ". During the production run a third-generation gear case was introduced, oddly enough with slightly smaller pinion bearings, which was probably a cost-cutting move. Like most american muscle cars of the Day the Pontiac GTO was a front engined rear wheel driven car. Thanks to the efforts of the Fabcraft Metalworks crew all the parts necessary to rebuild one are available along with a selection of improved components and special tools to make working on them easier. Automotive Technical and Reference Information, Project Cars, Trucks and Salvage Vehicles For Sale. Fabcraft also offered complete components for the differential, including all necessary bearings, seals, shims, limited-slip clutches, solid spacers, and crush sleeves, as well as beautifully refurbished OE parts. } 1990 to 1992: 7.625 inch ring gear, 28 spline axle. And even though new internals were available from Fabcraft, the carriers were simply becoming too difficult to find. Real World Hagerty Collector Car Insurance Claim Experience, How To Be Prepared For A Dyno Session And Not Waste Your Money, Holey Goat Father/Son Texas Road Trip 5 Days, and 2000+ Miles, Are You Killing The Hot Rod Community? Here you can see the three white paint splotches identifying the pinion size and the gears. Advance Design Trucks seem to be using rear You bring the gumption. var I=new Image(1,1); I.src=u; 0000005198 00000 n '67 Mustang M&M CUSTOM. . Rey Payumo of Kailua, Hawaii found this 1963 Chevrolet Impala packed with junk in a garage in Hayward, California. A Chevy 1/2 ton pick-up may have a Chevy 10 bolt rear axle or a 12 bolt rear axle. ?|-Zce14^nF%67( }fSRaQfqX?|{8{>? VX5EX=b :"-'k>.VbyV^-nWxv-WgUtpo>sMhlI4ZV<4+s>|2k>\x{7M^^x. Six rib cases will be found on '57 and '58 rearends, '59-64s have seven ribs. . L = Low - Zero to Negative Offset, Offset typically RWD (Rear . However, the 9.3-inch differential was saved from obsolescence by a Texas-based company called Fabcraft Metalworks and its owner, Brad Duerst. '67 Chevrolet Six User Info. This posi has 4 pinion gears, which makes it about 2 times as strong as the Chevy Eaton posi. Wilwood Engineering, Inc. - 4700 Calle Bolero - Camarillo, CA 93012 - (805) 388-1188. 1958-1970 Chevy Rear Differential code Identification : Using the charts below, you will be able to learn alot about the rear differential in your classic full size Chevy. The actual width that I made out of wood was based on both the measurements I had taken with the loose wheels and my research to determine what widths were available for purchase. %PDF-1.4 % We provide how-to and technical articles, vehicle and build features and examples, plus calculators and lookups that will help you get your ride from dream to driver. Good third-member cores are also relatively easy to come by, as many are now being saved from recyclers by fellow enthusiasts. 68-74 Nova, 71-73 Mustang/Cougar, 84-95 Corvette, 60-61" 64-69 1/2 ton 2wd Chevy/ Some GMC You bring the gumption. 3.08. In 1957, the Pontiac and Oldsmobile designs were combined and improved upon, producing a brand new 9.3-inch differential. The now famous Ford 9-inch, with it's unique, straddle mounted pinion, offered great strength for its weight, but even the heavy-duty nodular-iron version suffered from weaknesses that the 9.3-inch did not. '72 Dart A little history: In 1957, three important axles were introduced: Ford's 9-inch, Chrysler's 8.75-inch, and GM's 9.3-inch Hotchkiss-style axle for Pontiac and Oldsmobile. These rearends were the Hotchkiss style, which means the ring-and-pinion gears, along with the differential components, are housed in a removable carrier, making gear changes and axle replacement quick and easy. '72 Cougar, '74 Pontiac '49 Plymouth, '61 Chevrolet Impala '65 Cadillac, '66 Buick Wildcat '66-67 Chevrolet Big Car, '72 Charger '69 Oldsmobile 88, '72 Chrysler The non C-clip 8.5" 10 bolt, type "C" rearend was used in some 1969-'72 Pontiac GP and 1970-'72 Monte Carlo. I would like most people place the wheels and tires under the car and use a tape measure to determine the distance from wheel flange to wheel flange. A: By casting numbers and date codes, along with other external characteristics, all of which are shown in the manual by Zach Davidson and Brad Duerst. 0000002277 00000 n Detroit gear & axle : AB : 3.36 : No : Powerglide : Detroit gear & axle : AC : 4.11 : No : 3 speed, O.D . wagon pontiac plant 1975 2.73 ua va b sedan 1975 2.73 ya za b wagon 1975 2.73 pa pu f 1975 2.73 wl xl g . Please select a rear end that matches your vehicle below.General Motors has a wide range of front and rear ends! The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Both of these are semi-floating axles. 4.24 out of 5 stars. 1310 yoke, Dana 60 used the heavy duty yoke which takes the larger 1350 yoke. Is a pontiac center section as olds rear ends of that era? For a better experience, please enable JavaScript in your browser before proceeding. Originally posted by SUNNYD @Mar 22 2007, 10:23 PM~7534589. 60" 60's GMC and some Chevy's Dana 44 or Dana 60 with leaf springs 6 lug, Gear ratio's 3.21 to 3.92. The current axle needs to be measured to verify width, because it plays an important part in determining what rim backspacing is necessary. It'll help you sniff out the right parts and will walk you through building the differential for your gasser project. endstream endobj 19 0 obj<> endobj 21 0 obj<> endobj 22 0 obj<>/Font<>/ProcSet[/PDF/Text]/ExtGState<>>> endobj 23 0 obj<> endobj 24 0 obj<> endobj 25 0 obj[/ICCBased 36 0 R] endobj 26 0 obj<> endobj 27 0 obj<> endobj 28 0 obj<>stream Mavericks 8", All '75-77 6's & 8's Wheel Stud *. '66-67 Chevrolet Big Car, '72 Charger If you would like to compare the fit with a couple of different widths build your wooden rear end for the narrower width and then add shims to the ends to change the width. Once the wheels and axle was centered under the car I was able to raise and lower the wheels with my floor jack to check for clearance at different ride height and suspension travel. Very hard to find set, being as this is version is not being reproduced. 0000000911 00000 n Dont Be That Guy, Reversing Gears ~ Rescuing Ones Own Derelict 1967 Pontiac GTO, How To Paint a Lace Roof on the Cheap Using Grandmas Curtains, Exploring an Antique Junkyard in the Hills of West Virginia, Engine, Transmission, Chassis Swap Donor Vehicle Look-Up, Early Ford Beam Axle Identification and Dimensions, How To Box-In a Differential / Solid Axle Rear-End Housing, How To Install aLimited Slip/Posi Unit in a GM 10 Bolt 8.5 Rear-end, How To Install Ring and Pinion Gears in a Ford 8.8 Rear-End, How To Rebuild a GM 10 Bolt Chevy 8.5 Rear End, How To Select Proper Rear-End / Differential Gear Ratio, Popular Automatic Transmission Dimensions, Popular Automatic Transmission Identification Chart, Engine / Transmission / Chassis Donor Search, Project Cars and Part Donor Cars For Sale. with 10 bolt axle. 57" 71-74 V-8 Hoonigan Founder and Pro Rally Driver Ken Block Dead at 55, Worlds MOST Unusual Cars Ever Made, Found In One Warehouse, Lower the Bar ~ Perfectionism is Ruining the Automotive Hobby, 1971 GMC COE Fire Truck to Ramp Truck Car Hauler Build, Roadkills Best (and Worst) Drag Strip Tests, How To Choose the Correct Drag Racing Tire, 25 Tools and Gift Ideas Under $15 From Harbor Freight You Need, The Myths And Realities Of Carburetor Sizing, The Inaugural No Name Nationals Drag Race & Burnout Contest Coverage, Lawn Mower Racing ~ The Worlds CHEAPEST Motorsport, Quick and Easy DIY Headliner for Less Than $20, 1928 Ford Model A Coupe Goes From Yard Art To Driver, How To Turn Railroad Track into a DIY Homemade Anvil, New Docu-Series from Rat Rod Magazine ~ American Rust, Finishing a Late Friends Handmade 1956 Baby Buick Special Mini Car, Best 3-Ton Floor Jack? "" "" ". used a 3.21 Dana 44 used a standard chevy Demand exceeded supply, so after several years of planning, designing, and prototyping, Fabcraft Metalworks teamed up with a major U.S. manufacturer to produce a brand new, extreme-duty limited-slip differential for the 9.3-inch called the Trophy Track. '70 Duster , '71-77 Maverick You're building a gasser. a Custom Classic Truck" Peterson Publication; June or July 1999, . note 64 64 axle is same. 6>"FlJz^l,*4&V0afw .a@z"PXdj}o`2/ OQs=`&qf aDK|/U32.)0i%q~P"BaLw.Y@`uwy#Do~vt*o~@$y-KZe]X3q'WWb2y)0`61"4@Q*`6k RPf\`H#@ ^M8-|&YxO-t Registered: 16 years ago. Items '72 Chrysler. June 5, 2022 Posted by: Category: Uncategorized SiteStats_3379(); Actual wheel track could be as much as 6" to 8"depending on drum size: '67 to '70 Mustang/Cougar 6 cyl. Willwood Engineering. Find 1967 PONTIAC GTO Differential & Rear-End Components and get Free Shipping on Orders Over $99 at Summit Racing! Housings with leaf springs were used under Pontiac and Olds in 1957 and Olds only in 1958-60; Pontiacs had coil springs in 1958-60 and from 1961-64 both had coils. Shop Full Width; Shop With Sidebar; . '72-73 Torino, STOCK CENTER TO CENTER SPRING PERCH DISTANCE, '69 Chevrolet charles coker, 1953 pontiac tech advisor. A: They came in all fullsize Pontiacs and Oldsmobiles from 1957-64. All housings have strong, tapered axle tubes, come in numerous widths, and sport a variety of suspension brackets. 66-69 axle does not include 64 65 . The 55-57 Chevy car rear-end is almost a bolt in, the perches need to be relocated to the top of the housing though. Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory. The two makes used very similar differentials through the mid-'40s and into the '50s. It may not display this or other websites correctly. 1956 and back have 10-spline axles. 6 lug rear end 12 bolt Coil spring set up Possible gear ratio's 3.70. My '64's measure 54.25". The 8.2" BOP (Buick, Oldsmobile, Pontiac) model is slightly different in that it uses pressed on axle bearings and instead of c-clips . 1982-1997. In the '50s and '60s the search for high-performance parts usually meant a trip to the wrecking yard to rob components, engines, out of big, powerful cars of the dayChryslers, Fords, Cadillacs, Olds, Pontiacs, and W-Chevys were all used. 1939 engine numbers run 1915447 through 2697267. The later rear axle requires a wheel with between 5" and 5-1/4" of backspacing, while the earlier axles will only need a wheel with 4-1/2" to 4-3/4" backspacing. Learn more. '73 Ventura, '65 Ram American In head/2 per cylinder. Is a pontiac center section as olds rear ends of that era? These dimensions do not include brake drums and are measured from backing plate to backing plate. The final drive ratio is identified with 2 or 3 letters codes. But it's been so long I can't be certain. 0000002353 00000 n The Olds and Pontiac both used the same center section. 0000003369 00000 n if you dont have a versailles just a regular 9 inch rear end,, that is also 60 ". 1985 to 1989: 7.625 inch ring gear, 26 spline axle. The new P/O 9.3-inch immediately found its way into hot rods and race cars. '72-73 Mazda, '28-40 Ford , '57 - 59 Ford Approximate rear end widths measured from backing Model. Several features are common to most gassers. Wheel- Size.com The world's largest wheel fitment database. 0000008567 00000 n They're tough, right? . What is the width of a 1959 pontiac rear end? GM / Chevy - Differential IdentificationShop by your differential. The pinion shaft diameter is 1.625 inches and will have either 28 or 30 splines. . HVr0*u9$K;IG]&U&"x\s. For some time, only a small handful of ratios were available in new gears. Buick/Olds/Pontiac axles are typically retained with bearings. Privacy Policy. "+j)(4 T "Hd&6F T:R%xA+R>6^yyp0}Zc9^):(cdf_rKr2zB,ywV}w0*lkxwM y icR,2*G{>K\"|>XWAIRYQ_dKx}wt}_=/3=)>fQaa-# C+|prj~%ox$LpKaGPG&T`o. On early street rods it wasn't unusual for the rear of the car to be jacked up so wider than stock tires could protrude several inches past the fenders, but then styles changed and the need for a narrower rearend that was reasonably strong led many hot rodders to the '57 Ford 9-inch, particularly those under wagons and Rancheros as they were the narrowest. 0000006915 00000 n So what we are left with is this: A fully capable, period-correct, brute of a differential with complete aftermarket support. May 7, 2009. $1,825.00. Q: What cars did they originally come in? Add Width to compensate for drums as follows: 4" - 5" for small cars 5" - 6" for intermediate cars 6" - 8" for large cars, STOCK CENTER TO CENTER SPRING PERCH DISTANCE, Original VehiclesRear Suspension Width (Flange to Flange), Donor Vehicles Front and RearSuspension Width (Flange to Flange), Items 0000000716 00000 n Contributing information were Bob Welch, J The 1967 GTO came in 3 speed Automatic and a 4 Speed manual. 0000001291 00000 n The new 9.3-inch provided outstanding durability when subjected to abuse from all classes of race cars, including Top Fuel. I have in the past struggled to measure the car for the correct rear end width to get the wheels and tires to fit correctly for both appearance and to avoid contact with the fenders, frame and suspension. According to an old article, Inside '64 -- '72 A-Bodies, (Car Craft Magazine), 1967 was a transition year in that A-body cars might have a 1964-66 style rear end, a 1968-72 rear end (which is wider, and commonly available), or a "hybrid" rear end, which will have the 60.5-inch width, but with the early spring mounting pad and trailing arm . They are also easily modified to suit any chassis. PY Online Forums - Bringing the Pontiac Hobby Together, Classic TECH- specs, codes, resto issues FORUMS. For die-hard purists, it soon became a difficult proposition to build a worthy P/O 9.3-inch as aftermarket support subsided and the supply of virgin factory parts withered. Why not a Ford? I guess 66 will work too, but I don't have any way to verify this, nor any more information for you. 2D reg-duty / 4D med-duty 4-pinion. '68 AMX Fabcraft can also supply an excellent manual that tells you everything you need to know about these rearends, along with instructions on overhauling them, or they'll refurbish a rearend for you. 1969. . The 10-bolt was used in all the low performance applications. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass. But the components should at least be grounded in the era. Q: Why do Pontiac/Olds 9.3 parts cost more than those for a Ford 9-inch? "Hy-Tuff" axles are available for it from Moser and Mark Williams in any length (needed to . 70-81 4wd 6 lug reared It has been my experience that the 66 up axle is longer. I'm not sure of the Task Force width ranges at this time. Accurate Differential Identification is the first and most important step in your differential repair, upgrade or overhaul project. 3.21 to 3.92. It has been my experience that the 66 up axle is longer. Copyright 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Outside of flange to outside 54.25" 66 up are wider. '72 Cougar, '74 Pontiac '49 Plymouth, '61 Chevrolet Impala '65 Cadillac, '66 Buick Wildcat '66-67 Chevrolet Big Car, '72 Charger 0000002004 00000 n You must log in or register to reply here. some Chevy's Dana 44 or Dana 60 with leaf springs 6 lug, Gear ratio's You can identify the B-O-P assemblies by the two reverse-scalloped sections of the differential cover located at the 9 and 3 o'clock positions. Billet-steel yokes and carrier caps could be added to make the 9.3-inch nearly bomb-proof. Posts: 8. Check here to see if your engine is correct for your year truck. Cars from all the traditional drag racing classes are being built and/or restored, but among the most popular of these period-correct builds are the cars riding high on solid front axles and sporting fenderwell headers: gassers. Below matches. |;|tB70t:`!t;?Yp?o^16Y*Ra(k ;6te64^bv n+;:G57@hbM_5 N . For instance, if both the engine and transmission deliver up to 100 ft./lbs. @`AWG^8J>4j|^Vk@oXq7@@/9ep Chrome 10 Bolt Rear End Cover Fits Chevy Pontiac Oldsmobile10 Bolt Differential %%EOF Snap On vs Daytona, Pittsburgh, ESCO, Husky, More. They were tough with 9.3-inch ring gears, big pinion shafts, and large-diameter bearings and tough axles. GMC V-6 Pontiac Differential Codes Year Model Rear Ratio Tooth Count Std Code Posi Code 1970 Big Pontiac 2.56 41/16 UC VC 1970 Big Pontiac 2.73 41/15 UD VD 1970 Big Pontiac 2.93 41/14 UE VE 1970 Big Pontiac 3.23 42/13 UG VG 1970 Big Pontiac 3.42 41/12 UH VH 1970 Firebird 2.73 41/15 CRX CRY To say I was disappointed by the service provided by this company would be an understatement. B-O-P axles also have identifying grooves traveling along each side of . Diagram. I'm running the wider blazer rear end . 57" 71-74 V-8 Mavericks 8", All '75-77 6's & 8's Maverick 5 Lug 8", 49-51 Ford, 57-59 Ford 9", 58" 78-88 Mid sized GM Car, Malibu/Monte Carlo (82 up Metric Studs), 80 Granada & Lincoln Versailles, 67-70 Mustang/Cougar/Fairlane, Regal with 10 bolt axle, S-10 P.U., 65-67 Nova, 60" 55-64 Chevy Car, 67-69 Camaro, 64-67 Chevelle, 68-74 Nova, 71-73 Mustang/Cougar, 84-95 Corvette, 60-61" 64-69 1/2 ton 2wd Chevy/ Some GMC 6 lug rear end 12 bolt Coil spring set up Possible gear ratio's 3.70. Under the hood, Pontiac installed a 2.5 . The following information is provided to help you identify the differential you are working on. Buick and Pontiac 10-bolt rear ends used flange-retained axles instead of the C-clip retained axles like those on Chevrolet rears. Discussion in 'Traditional Hot Rods' started by Ruiner, Sep 4, 2006. Approximate rear end widths measured from backing plate to backing plate. I've heard 'prolly torque-tube' from most that I've asked My friend's stock '41 Pontiac is open drive, so I would imagine that the '50 is as well.
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