86MJX Posted August 4, 2009 Share Posted August 4, 2009 hey all I'm new here but not to jeeps. i just got a 86 comanche X that is a gun mettel grey color,black bumpers, brush guard and red int, it has the 2.8 i think v6 and runs good, but i bought it broke, the po had done some thing to it and long story short the pinion gear in the rear end is wedged up against the ring gear. so i was going to go to the JY to try to find a new rear end i think its an 8.25. what shuld i look for that could have one in it. i will try to post some pics of the truck soon. any other tips would be great. thanks. Link to comment Share on other sites More sharing options...
CWLONGSHOT Posted August 4, 2009 Share Posted August 4, 2009 IF it is an 8.25 its been swapped it. There is no drop in 8.25 avalible. Your only option for a bolt in is a D35 or a D44. If you really want another 8.25, you will need to weld in new perches and shock mounts to a XJ 8.25 axle. IF you go this route, try to get a 29SPL 8.25 axle. You didnt mention if its a 4WD. If it is, BE CAREFUL WITH RATIOS. They need to match. CW Link to comment Share on other sites More sharing options...
86MJX Posted August 4, 2009 Author Share Posted August 4, 2009 yes it is 4wd the cover on the axle is the oval shape it must be te d35, i don't know much about the smaller axles all my fsjs have d44s. i did not want to have to mess with changing out gears that is why i just wanted to find a bolt in replacement. Link to comment Share on other sites More sharing options...
Geonovast Posted August 4, 2009 Share Posted August 4, 2009 Your only option for a bolt in is a D35 or a D44. The AMC 20 was also a somewhat rarity, and only available in 86, but if you find an MJ 20, it would drop right in. Link to comment Share on other sites More sharing options...
Automan2164 Posted August 4, 2009 Share Posted August 4, 2009 :agree: I was thinking the same thing Correy. The AMC 20. Does it have any kind of lift? What is its primary use going to be? And welcome! :cheers: Rob L. Link to comment Share on other sites More sharing options...
86MJX Posted August 4, 2009 Author Share Posted August 4, 2009 i don't know if it has any kind of lift but it fits 31x10.50 on 15x8s with out rub. its gonna be a dd/medeum trail rig a small 3in lift might go on l8er. i just want to find a rear end so i can get it on the road without having to change and set gears. cause 8mi to the gallon in my 77 J10 is pulling down my wallet. Link to comment Share on other sites More sharing options...
Automan2164 Posted August 4, 2009 Share Posted August 4, 2009 As far as bolt on ability goes, its a comanche only rear. Others will work but not without re-welding perches. Sounds like you might have a 3" lift alreadt if your fitting 31" with no rub. Any pictures? Rob L. Link to comment Share on other sites More sharing options...
Eagle Posted August 4, 2009 Share Posted August 4, 2009 Sounds like you might have a 3" lift alreadt if your fitting 31" with no rub. Not at all. I'm running 31x10.50s on my '88 Cherokee with no lift. Link to comment Share on other sites More sharing options...
86MJX Posted August 16, 2009 Author Share Posted August 16, 2009 well i found a d35 with 3.55 gears thanks reeser. gonn start working on getting the old one out and swaping breaks. i will post some pics tonight. but is there any thing yall think i shuld know? allso I'm looking for parts for the break valve thing i can't think of the name, but i still have the valve it self i just need the parts that go from the rear end to it so if any body is in the area and has one let me know. thanks john. Link to comment Share on other sites More sharing options...
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