Rearend Rebuild - Dodge Cummins Diesel Forum
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post #1 of 4 (permalink) Old 07-01-2014, 11:08 AM Thread Starter
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Rearend Rebuild

My pinion bearing on my dually is knocking pretty bad right now so had to park the truck for now. I have only messed with 1 rear before in a old '68 C30 I had in high school so not to educated on axles. How hard is it to rebuild a rear by yourself, and what all is needed to do so? Should I look into a new ring and pinion also, or just a bearing rebuild kit? Seems straight forward from what I have read but still nervous. It will probably be around 2 months at best before I get a chance to do it since I'm going to be moving before summer ends, and between that and just blowing $800 to get my Mountaineer on the road money is tight. But I would like to to start trying to gather the parts needed to accomplish this. Also am I correct that I have a D70-HD?
Thanks in advanced.


Dustin
92' ext cab d350 dually
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post #2 of 4 (permalink) Old 07-01-2014, 12:52 PM
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Definitely need a bearing splitter, hydraulic press, and dial indicator. - cheap versions from Harbor Freight will do - and also need in my opinion the housing spreader which is not inexpensive. It is really difficult to properly set up a Dana rear end without the spreader.
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post #3 of 4 (permalink) Old 07-01-2014, 01:30 PM Thread Starter
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Sounds like I'll end up spending more on tools than parts. Maybe Ill be better off just sourcing the parts and have Six States do the work, or get lucky and find a used axle instead. Thanks for the info.

Dustin
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post #4 of 4 (permalink) Old 07-01-2014, 03:05 PM
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Problem with another "used" axle is you can't be sure your going to end up with anything better then you have. The D70U in my crewcab is in need of a rebuild, I'd rather spend the money on the rear diff I have, then I know for sure it's in good shape.

You could have a Dana 70 U, or a Dana 70 HD. Look at your diff on the front side, driver side upper rib front he center section, down to the axle tube. There is a casting in the case that tells you what diff you have.

1984/93 Dodge Crewcab, W350, 1 Ton SRW, long box, 350K Km's, hydroboost, 366 spring, fuel pin to deep side, 14cm housing, Piston LP, PS IC, Isspro Boost, Pyro and tach, NV4500, 29 spline NP205, 3.54's.
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