Question about Chevrolet 3500
There's not much inside there to see. Beginning at the driveshaf yoke, You have the nut that holds the pinion yoke on, a washer under that, a seal in the housing to keep the lube in, the outer pinion bearing another washer (or spacers, a crush collar and possibly a few more washers, the pinion bearing and the pinion gear itself. The carrier has a bearing on both ends held on to the housing by two end caps. Inside or on the housing you have the ring gear,four pinion gears and a shaft that holds the two free pinion gears in. That shaft has a 5/16 bolt in one end to keep it from sliding out of the carrier. The axles protrude through the two side gears and are retained by two "C" shaped retainers that can be removed only when the cross shaft has been removed. Sounds rather simple but, rebuilding them requires a lot of experience and dial indicators in order to get it right. Reading a gear contact pattern is part art, part science and getting it wrong will result in noise and quick failure. If you have a positraction unit, the posi plates and springs go inside the carrier and are a bit complicated to install without damaging them. There are many end to end differentials you can put under there available cheap from a scrapyard. Only requirement is to get the drum to drum length right and if it's a 4x4 the gear ration must match the one at the other end of the vehicle.On some, you may need to cut the spring mounts off and weld them in the proper places.
If you need info on a specific part inside the rear, ask.
Posted on May 22, 2011
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Posted on Jan 02, 2017
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