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Go Back JeepForum.com > Models > Jeep Cherokee & Comanche Forums > MJ Comanche Technical Forum > What rear end to swap in for Dana 35c?

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Unread 05-24-2008, 04:24 PM   #1
crlang2
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What rear end to swap in for Dana 35c?

I have a 1991 Comanche Eliminator which spent most of its life in the rust belt... I'm trying to restore it to reasonable/dependable operation. Among other things, the Dana 35c , drum brakes and the leaf springs are all heavily corroded. As far as I can tell, the internals of the D35c are OK, but I haven't opened it up yet.

I thought I would take the opportunity to convert to rear disc brakes, as the current drum brakes are junk. It might also be nice to upgrade the Dana 35c to a 44 or other stronger rear end at the same time.

Any suggestions as to the best/easiest rear-end swaps that I might consider?

From other threads I see that ZJ D35c's are a possible choice as are Explorer 8.8s. Any opinions? I presume that I would have re-gear them to my 3.07 ratio...

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Unread 05-24-2008, 05:31 PM   #2
maddzz
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You would be better off getting a lower (higher number) gear ratio in the rear and then re-gear the front to match.
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Unread 05-24-2008, 05:55 PM   #3
jeepicon-com
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an think waggy 44's or maybe some bronco 44's would be worth looking into, I believe you can find the 3.07 gearing in those. You might have to suck it up and keep the drums unless you do a conversion. Anything you do will probably cause you to have to cut and burn new perches and shock mounts. Unless you find a rare bolt in MJ 44 that suits your needs.
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Unread 05-24-2008, 10:29 PM   #4
crlang2
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Quote:
Originally Posted by maddzz View Post
You would be better off getting a lower (higher number) gear ratio in the rear and then re-gear the front to match.
I had not considered that changing the front ratio is no more difficult than changing the rear... Thanks, I'll keep that option open.
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Unread 05-24-2008, 10:31 PM   #5
crlang2
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Quote:
Originally Posted by JeepMJ-com View Post
an think waggy 44's or maybe some bronco 44's would be worth looking into, I believe you can find the 3.07 gearing in those. You might have to suck it up and keep the drums unless you do a conversion. Anything you do will probably cause you to have to cut and burn new perches and shock mounts. Unless you find a rare bolt in MJ 44 that suits your needs.
I was told that D44s were hard to come by... But I didn't know they could be found in Broncos. I'll look into that, Thanks.
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Unread 05-25-2008, 01:03 AM   #6
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There are a TON of 44's out there. Its just that many are not a bolt in for your application (Murphy's Law - you never find the good deal on the axle you need). If you have the skills of steel fabrication, than I suggest you go shopping at your local junk yard as there are still many places that will sell ANY axle for around 100 bucks. Educate yourself, then go pull it.
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Unread 05-25-2008, 01:11 AM   #7
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If you decide to swap both axles........

Look for a 4cyl XJ w/ manual trans. They should have 4.10 gears. TJs are a lot easier to find, but they are lo-pinion (u-joint life becomes an issue).

I think the perfect pair for the rear is an 8.8 rear w/ disk breaks and 4.10's from an explorer. Depending on tire size, you will need a 1" wheel spacer for this axle... or A LOT of cutting. (I will cut)



When I get the cash this is the route I will go.
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Unread 05-27-2008, 02:49 AM   #8
Abstruse
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Good luck finding the holy grail of Dana axles, many people talk about finding these in your local junk yard on old Broncos etc... very few succeed in actually obtaining one from a source like this though. Jeep enthusiast everywhere seek these out by the masses, junk yard owners know what they have, these things go quick and very few if any by this means are still around. You'd have better luck winning the lottery than just getting lucky and finding one of these in a junk yard anymore. The only luck I've seen is buying a new one from an aftermarket manufacturer and they want top dollar for the things, not worth the money to stick in an MJ Jeep, or any vehicle you want to build for serious off road that doesn't have a real frame under it. Better to save this kind of money and just have what you got regeared and the axles welded for around $1200 at a pro shop.
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