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Unread 10-31-2012, 07:27 AM   #16
Pete M
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1988 MJ Comanche 
 
Join Date: Sep 2005
Location: S/E Michigan
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the 29 spline 97+ chrysler 8.25 found under some Cherokees is a decent upgrade. the earlier one isn't much stronger than a Dana 35, but can still be worth while if you can get a better ratio in the deal.

what's a Dana 34?

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-88 MJ; 4.0L, ex-2wd, TJ ax15/231, 78 Ford D44 w/spool, 9" w/posi, 33" trXus MTs, custom roll-bar/bumpers/etc.
Also an 86 MJ Metric ton and 2 '90 MJs
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Unread 11-06-2012, 02:50 PM   #17
sbishop250f
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1997 TJ Wrangler 
 
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would the chrysler 9.25 be sufficent for 35's? im looking to put 35's on my wrangler and am looking to swap the dana 30 and 35
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Unread 11-06-2012, 04:16 PM   #18
Pete M
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the 97+ one can do ok. they are comparable with a dana 44. But it won't help you with trying to match it up front if you're dumping the dana 30. unless you're going to a high pinion dana 30. that will match.

another choice if you're willing to pay for a gear upgrade is a Dana 44 front from a late model grand wagoneer matched with a rear dana 44 axle from a mid 90s Isuzu Rodeo (and there was a sister suv that has the same axle but I forget the name). the v6 version of the rodeo will have disk brakes, and a 4.10 or 4.30 gear ratio and matches the Waggy front axle in bolt pattern and width. search and you should find some writeups. The waggy will be low pinion, but it'll have a drivers side diff and match the Isuzu rear. obviously a grand waggy rear 44 will also work, but the Isuzu has disks and a good gear ratio right off the bat. just need to swap for a U-joint yoke.

car-part.com can help with finding the axles.
__________________
-88 MJ; 4.0L, ex-2wd, TJ ax15/231, 78 Ford D44 w/spool, 9" w/posi, 33" trXus MTs, custom roll-bar/bumpers/etc.
Also an 86 MJ Metric ton and 2 '90 MJs
Projects/wheelin' pics: picturetrail.com/petermontie
My email: petermontie@hotmail.com
ComancheClub.com/forums
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Unread 11-06-2012, 06:21 PM   #19
ftpiercecracker
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Why are you saying things have to match ? And do you know if the HP dana 30 is a direct bolt in? A popular axle combo that i have seen is the HP dana 30 and either the ford 8.8/chrsyler 8.25/MJ dana 44

Other than the HP D30 I dont really know of any other axles to swap for the front.
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Unread 11-06-2012, 06:32 PM   #20
Pete M
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axle width and wheel bolt pattern are ind nice to have matching front to rear. :P

yes, the hp 30 is a direct bolt in for TJ owners. your brakes won't match ever year of XJ though, so you may need to swap your guts and whatnot over to the hp housing depending on what you get.
__________________
-88 MJ; 4.0L, ex-2wd, TJ ax15/231, 78 Ford D44 w/spool, 9" w/posi, 33" trXus MTs, custom roll-bar/bumpers/etc.
Also an 86 MJ Metric ton and 2 '90 MJs
Projects/wheelin' pics: picturetrail.com/petermontie
My email: petermontie@hotmail.com
ComancheClub.com/forums
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Unread 11-06-2012, 07:47 PM   #21
ftpiercecracker
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Quote:
Originally Posted by Pete M View Post
axle width and wheel bolt pattern are ind nice to have matching front to rear. :P

yes, the hp 30 is a direct bolt in for TJ owners. your brakes won't match ever year of XJ though, so you may need to swap your guts and whatnot over to the hp housing depending on what you get.



Oh ya, didnt think of that but there is always wheel spacers and lug adapters


As for the HP 30 do you know of any alternatives?
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Unread 11-06-2012, 11:26 PM   #22
Pete M
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there are no easy alternatives for that width and bolt pattern unless you have some decent dough to throw at a custom axle.

but there are plenty of Jeeps out there running the dana 30 with 35 inch tires. just gotta upgrade things here and there don't thrash on it like it's a Dana 60.
__________________
-88 MJ; 4.0L, ex-2wd, TJ ax15/231, 78 Ford D44 w/spool, 9" w/posi, 33" trXus MTs, custom roll-bar/bumpers/etc.
Also an 86 MJ Metric ton and 2 '90 MJs
Projects/wheelin' pics: picturetrail.com/petermontie
My email: petermontie@hotmail.com
ComancheClub.com/forums
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Unread 12-02-2012, 07:48 PM   #23
motorfiend250
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need dana 35 307 for 89 comanche

Quote:
Originally Posted by Pete M View Post
The Ford 8.8 from an Explorer is an even better choice if you can get leaf mounts welded on. Stonger, newer, more available, and 96+ have disk brakes. The wheel bolt pattern is the same as your Jeep and the gear ratio choices are 3.55/3.73/4.10. The axle is about an inch narrower than the Dana 35, but that's not much. If it bother you, the best fix I've heard of is to buy a 1.5" wheel spacer for ONE side, bolt that up to the passenger side to scoot the a little closer to the centerline, and then center the axle and weld on the perches. If I didn't already have an MJ D-44 lying around, I'd be going with an Explorer 8.8. Stay away from other 8.8s from ranger/cars/f-150s because they are either weaker or too wide/narrow.
car-part.com can help locate any axle you want.
This site will give you an idea of what's involved with the swap.
http://www.jedi.com/obiwan/jeep/ford88.html
Jeep on!
--Pete
I have the 89 comanche and the rear end is bad do u know anyone selling a used dana 35 307 gear ratio?? please reply nedd it really bad!!!! my nuber is 509-270-1867
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Unread 12-02-2012, 10:22 PM   #24
Pete M
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car-part.com can help with finding one in a junkyard. If it's a 2wd truck, the 3.55 ratio will also work. and an XJ axle will work if you can get the leaf spring mounts welded on (just about any repair or muffler shop can do that)
__________________
-88 MJ; 4.0L, ex-2wd, TJ ax15/231, 78 Ford D44 w/spool, 9" w/posi, 33" trXus MTs, custom roll-bar/bumpers/etc.
Also an 86 MJ Metric ton and 2 '90 MJs
Projects/wheelin' pics: picturetrail.com/petermontie
My email: petermontie@hotmail.com
ComancheClub.com/forums
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