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Rear axle identification Chevrolet pickup 1978?

The Chevrolet pickup offered many different rear axle configurations. There were 5 main groups (12 bolt full-float, D44HD full float, C10 Dana 60 full-float, 14 bolt Full float, and 14 bolt semi-float) and additional differences within each group. The only way to positively identify a rear axle without removing the wheels and hubs, or opening the differential cover, is to locate a stamped code found on the axle tag attached to the housing with one of the differential cover bolts. Some of the most common rear axle configurations in the 1978 Chevrolet pickup include:

* 12-bolt rear axle: This axle was found on many 1978 Chevrolet pickups with a V8 engine. It features a 12-bolt ring gear and a floating axle design, which means the axle shafts are not attached to the wheels.

* Dana 44HD rear axle: This axle was found on some 1978 Chevrolet pickups with a 350 cubic-inch V8 engine. It features a 9.75-inch ring gear and a floating axle design.

* C10 Dana 60 rear axle: This axle was found on some 1978 Chevrolet pickups with a 350 cubic-inch V8 engine and a crew cab or long bed. It features a 10.5-inch ring gear and a floating axle design.

* 14-bolt rear axle: This axle was found on some 1978 Chevrolet pickups with a V8 engine and a crew cab or long bed. It features a 14-bolt ring gear and a semi-floating axle design, which means the axle shafts are attached to the wheels.

If you are unsure what type of rear axle is in your 1978 Chevrolet pickup, you can find the axle tag by looking on the driver's side of the differential housing, near the top. The axle tag will have a stamped code that you can use to identify the type of rear axle.

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