12/31/2023 0 Comments 1973 el camino rear end gear specsRenamed Caballero in 1978, it was also produced through the 1987 model year. GMC's badge engineered El Camino variant, the Sprint, was introduced for the 1971 model year. Production resumed for the 1964–1977 model years based on the Chevelle platform, and continued for the 1978–1987 model years based on the GM G-body platform.Īlthough based on corresponding General Motors car lines, the vehicle is classified in the United States as a pickup. Introduced in the 1959 model year in response to the success of the Ford Ranchero coupé utility, its first run, based on the Biscayne's B-body, lasted only two years. Unlike a standard pickup truck, the El Camino was adapted from the standard two-door Chevrolet station wagon platform and integrated the cab and cargo bed into the body. and mount what would normally be considered a 3 series ring gear ratio in it.īut you don't need any of that, if you bought the axle as a complete unit, the axles & carrier should all bolt together again fine, you just need a 3.23 ring gear to reassemble it.The Chevrolet El Camino is a coupé utility vehicle that was produced by Chevrolet between 1959––1987. They now make thicker ring gears for the more populare axles so you can use a 2 series carrier (in a 8.5 or 8.2) 3.23-2.56. So they have to move the ring gear closer to the pinion gear to keep the clearences the same. As the gear ratio's get lower (numariclly higher say a 3.73 compared to a 2.56) the pinion gear (the small gear that is turned by the driveshaft yoke, and turns the ring gear) gets smaller in diameter as they have to cut more teeth into it. The only differece in the carriers when we are talking about "Series" is were the ring gear flange is machined onto it. It is basicly part of the carrier, as it will not mount in a open or non-posi carrier.Īs long as your axles are the same spline count, and your carrier is the correct series for your ring gear it should all work. The carrier is the large metal housing that the ring gear bolts to, the posi unit is mounted inside the carrier. And if you do stumble onto a good 8.875 carrier, I do have extra 73 "A" body axles for it. So it apears that the ring gears are the same for the 8.875 & 8.750 axles. And it bolted into the 8.750 axle from the 77 Buick Wagon. I was given a 3.08 posi carrier of unknown aplication taken from a 78 caprice police car a number of years ago. But the axle spline count is different (I haven't tried to count them yet, but they will not fit the other axles's carrier) and the 8.75 axle has a fill port in the cast center housing like a 8.5, 8.2, or 7.5 axle. I have swapped the 3.08 ring gear onto my 8.875 carrier, and it bolts in, and has the same demesions as the 8.875 3.23 ring gear. Also a 10 bolt cover with a 12 bolt ring gear. Now my just parted out 77 Century wagon had what GM called a 8 3/4" axle, or a 8.750 axle. My interchage book also lists light duty pick up trucks with the coil spring rear suspension from 68-72. But the most common use was the full size BOP wagons of the era 71-76. They wre also used in Police cars, and V-8 taxi cabs. It has a 10 bolt cover, and a 12 bolt ring gear with the fill port on the rear cover, not in the casting like most other GM axles of the era. 68-75 V-8 wagons, (I have been told that the 6 cylinder wagons used 8.25 axles from 68-72, and 8.5 axles 73-77) used the 8 7/8" axle or 8.875. Well being the station wagon idiot of our small group, I am learning alot bout these axles.
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