87 comanche Posted June 29, 2009 Share Posted June 29, 2009 I have found an 85 cherokee 2.5l auto 4x4. Would this jeep have the 4:10 gears in the axles that would be a direct swap into my 87 4.0 , 4x4 comanche? :clapping: Link to comment Share on other sites More sharing options...
comanche13 Posted June 29, 2009 Share Posted June 29, 2009 yes Link to comment Share on other sites More sharing options...
Eagle Posted June 29, 2009 Share Posted June 29, 2009 An '85 4-cyl automatic might have 3.55, 3.73, or 3.31 gears. The front axle will bolt right into your MJ. On the rear axle, the spring pads have to be cut off and moved from the top of the axle tubes to the bottom. Link to comment Share on other sites More sharing options...
87 comanche Posted June 29, 2009 Author Share Posted June 29, 2009 Shouldnt' be stamped on the outside of the diff or do I need to pull the cover to be sure? Link to comment Share on other sites More sharing options...
BLHTAZ Posted June 29, 2009 Share Posted June 29, 2009 Shouldnt' be stamped on the outside of the diff or do I need to pull the cover to be sure? If it is still there, and legible, there may be a tag attached to one of the differential cover bolts that will have the gear ratio information on it. Otherwise, I agree with Eagle, they will not be 4.10 gears, and there will be a little work involved on the rear axle, but nothing to terrible. Link to comment Share on other sites More sharing options...
Eagle Posted June 29, 2009 Share Posted June 29, 2009 I have found that there is usually a tag (or the remainders of a tag) on the front differential. It may require decoding. I have never found a tag on a rear axle, other than one indicating the presence of a Trac-Lok. Link to comment Share on other sites More sharing options...
Geonovast Posted June 30, 2009 Share Posted June 30, 2009 I have found that there is usually a tag (or the remainders of a tag) on the front differential. It may require decoding. I have never found a tag on a rear axle, other than one indicating the presence of a Trac-Lok. A tag fell off the D35 on the XJ, completely illegible, so I went out and checked for a trac-lok. If it has it, it's completely dead. Link to comment Share on other sites More sharing options...
Automan2164 Posted June 30, 2009 Share Posted June 30, 2009 Here's the site for the breakdown of the axle tag codes, they are found on front and rear. Scroll down for the info. http://www.lunghd.com/Tech_Articles/Sus ... Ratios.htm Rob L. Link to comment Share on other sites More sharing options...
JeepcoMJ Posted June 30, 2009 Share Posted June 30, 2009 4 cyl auto is either 3.73, 4.10, or 4.56 gears. 4 cyl 4 speed is 3.55 or 3.73 gears 4 cyl 5 speed is 4.10 gears with possibility of 3.73's or 3.55's. Link to comment Share on other sites More sharing options...
freakjeep93 Posted June 30, 2009 Share Posted June 30, 2009 what would a 6cly 5 speed 2wd have for rear end gerars ?? Link to comment Share on other sites More sharing options...
Geonovast Posted June 30, 2009 Share Posted June 30, 2009 3.07 :ack: Link to comment Share on other sites More sharing options...
jpnjim Posted June 30, 2009 Share Posted June 30, 2009 After 8 hours of going through every service manual, parts book, data book & factory brochure I have, I made a list of this stuff, and it's as correct as that information will allow. Some will say it's wrong, or they had x.xx in an xx, or whatever, and that's fine. None of the Jeep's I've had, or taken apart have conflicted with this list, but that doesn't mean it takes into effect every regional option, or special order available. I will say I've heard people swear to combo's that the parts don't even exist in the parts books, so take everything (this list included) with a grain of salt. :cheers: Link to comment Share on other sites More sharing options...
Eagle Posted June 30, 2009 Share Posted June 30, 2009 what would a 6cly 5 speed 2wd have for rear end gerars ?? If the 6-cyl is a 4;0L it will have 3.07 gears. No options. If the 6-cyl is a 2.8L V6, it could have 4.10s, 3.73s, or possibly 3.55s. Link to comment Share on other sites More sharing options...
MrSimon Posted July 1, 2009 Share Posted July 1, 2009 Was there a 4cyl auto option in 95? If so, would it have 4.10s? Link to comment Share on other sites More sharing options...
Geonovast Posted July 1, 2009 Share Posted July 1, 2009 Yes, the 2.5 4 cylinder was the only motor available in every year XJ and MJ. IIRC after 91-92 ish ALL 4 cylinders were given 4.10 axles. Check to be sure however, as we can never say for sure. Link to comment Share on other sites More sharing options...
87 comanche Posted July 5, 2009 Author Share Posted July 5, 2009 Thanks guys for all the info. I was on craigslist the other day and came across 87 comanche axles that were in a 4cyl 4x4 :cheers: direct bolt in 4:10s for $100 bucks Link to comment Share on other sites More sharing options...
jpnjim Posted July 5, 2009 Share Posted July 5, 2009 Yes, the 2.5 4 cylinder was the only motor available in every year XJ and MJ. (very) minor point, but there were no 2001 4cyl XJ's. (unless they snuck some in for fleet models, or something, since the books don't show them) Link to comment Share on other sites More sharing options...
BLHTAZ Posted July 5, 2009 Share Posted July 5, 2009 Thanks guys for all the info. I was on craigslist the other day and came across 87 comanche axles that were in a 4cyl 4x4 :cheers: direct bolt in 4:10s for $100 bucks AWESOME!! :thumbsup: That's a deal not often found. Link to comment Share on other sites More sharing options...
Geonovast Posted July 5, 2009 Share Posted July 5, 2009 Yes, the 2.5 4 cylinder was the only motor available in every year XJ and MJ. (very) minor point, but there were no 2001 4cyl XJ's. (unless they snuck some in for fleet models, or something, since the books don't show them) I've seen several for sale at local dealerships and on CL. Link to comment Share on other sites More sharing options...
jpnjim Posted July 6, 2009 Share Posted July 6, 2009 Anything's possible, but they killed the SE (and the 2.5L with it) after 00'. To make it even simpler, they even dumped the 49 state emissions 4.0L. (leaving just the low emissions 4.0L, with a gazzilion o2 sensors, and pre-cats for 01'.) Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now