8.75 Rebuild

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Here is a good starting point.

http://www.moparmusclemagazine.com/techa...ldup/index.html

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That article is nice.

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I'm not well-versed in the (at this point is) mystical art of rebuilding an 8.75 pumpkin (a 742 would be preferable). At one point I was just going to go ahead and buy a 742 already done. I may still do that. But, budget realities are starting to hit home and I'm trying to figure out if I can do it myself and save some $$$$. I haven't found a lot of info on exactly how to rebuild a 742 on the net.

Disassembly and assembly don't look very difficult to me and I suspect that the hard part is getting everything set correctly with the shims. True?

What out of the ordinary tools would I need? And, how much can I save by doing it myself vs buying one already done? Seems like if I take my time and shop smart, I may be able to get it done a little cheaper.

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Look in the "trans differential" for sale section. Might be able to find a core. Then contact doctordiff for any parts you need to rebuild it. He's a member here. Even if you find one already rebuilt I would take it apart and check everything out. I purchased a 489 case with 4.10 gears 2 years ago for $500 plus a core, at the Chrysler Winter Classic in Ohio, that was supposed too be all new. Long story short it didn't last 10 miles.
Had a friend help me rebuild a 742 case. The clutch pack was good so saved some money there. You might get lucky and have good bearings too. Ordered the ring and pinion and shims from doctordiff. You need the tool to take the bearing off the pinion gear and a press to put it together. You might have to take it apart more than once or twice. We used the permatex anti seize #765-1674 to check the pattern. Just make sure your lash and pinion depth is correct and everything is torqued.