89c4 rear end gear change

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04-10-2015, 07:48 PM

#21

WVZR-1

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Quote:

Originally Posted by Vett1990

Thank you for that bit of information... I had no idea the D35 spiders are a replacement, which would still make my D36 a useful piece, I almost scraped my D36 diff.

I know fore sure that my current set-up will not benefit with a D36, althought the D36 went further then what I expected from it.

What year is your D36 and what ratio was it OE? Do you know what the assembly # is off of the bottom of the housing? I'm interested in a 605XXX or the GM assembly number. That would help me help you.

/

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04-10-2015, 09:03 PM

#22

schroeter89c4

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Quote:

Originally Posted by Vett1990

I'm still up in the air on the rear end. It will be next winters project. Just finished installing the Flowmaster front y pipe with converter and changing the trans filter and adding a drain plug to it wile the x brace was off. I'll run the trans for a few and drain it again. My concern now is lowering it. It's up in the air and I'm starting it tomorrow. I have the wedges but I've hear others say just cut all but 1/4 inch off the rubber and others say take it all off. I'm looking for the most drop without problems. Any thoughts.

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04-11-2015, 07:00 AM

#23

eutu1984

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Quote:

Originally Posted by WVZR-1

If you actually need the small pinions and washers the Jeep D35 is a fit and I believe readily available. What year is your D36? There's actually a couple carriers and a couple builds that use different pinions I believe.

You shouldn't need the side differential gears. It would be a catastrophic failure that would require those I believe.

Tom's Differentials has a spider gear kit's for dana 36. http://www.tomsdifferentials.com/tomp.htm

Last edited by eutu1984; 04-11-2015 at 07:00 AM. Reason: add dana 36