GirsMJ86 Posted March 22, 2006 Share Posted March 22, 2006 just sittin here wondering what i should do to my mj next when it hit me. idk which tranny my 86 2.8L 4x4 auto has in it. is it the 904, 909, or the 999? or are the others it could be? and is there any way to swap in an aw4? so any help would be nice. Link to comment Share on other sites More sharing options...
Eagle Posted March 22, 2006 Share Posted March 22, 2006 An '86 should have the 904. Tye 2.8L and the 2.5L use the same bell hosing to block bolt pattern, so if you can score one of the bell housings for mounting an AW4 to a 2.5L, you can mount it to a 2.8L. Of course, the logical next question would be : Why bother? Personally, I'd rather have a 2.5L than a 2.8L any day. Link to comment Share on other sites More sharing options...
GirsMJ86 Posted March 22, 2006 Author Share Posted March 22, 2006 very true but engine swap price is out of my range for now any ways. i will be putting a 3.4 in it in the future. Link to comment Share on other sites More sharing options...
Eagle Posted March 23, 2006 Share Posted March 23, 2006 I hear you. I have confirmed that there is a factory part number for putting an AW4 behind a 2.5L, so that same bellhoyusing will fit the 2.8L. I don't know what you would need for a flex plate, and the 2.8L engine is externally balanced so you would have to do something about the torque converter balance. And I don't know if there was a special (smaller) torque converter for the AW4 when used behind the 2.5L. I suspect there may be, because the bell housing is smaller. Link to comment Share on other sites More sharing options...
GirsMJ86 Posted March 23, 2006 Author Share Posted March 23, 2006 well if there is a factory part number i have it in my comanche parts list book some where. i will have to look for it though. but if anyone has that number let me know incase i can't find it. -alex Link to comment Share on other sites More sharing options...
GirsMJ86 Posted March 23, 2006 Author Share Posted March 23, 2006 ok what about t-case? what should the stock one be for the 2.8L 86 stock truck? Link to comment Share on other sites More sharing options...
Eagle Posted March 25, 2006 Share Posted March 25, 2006 ok what about t-case? what should the stock one be for the 2.8L 86 stock truck? NP207 with 21-spline input, 2.62:1 reduction ratio Link to comment Share on other sites More sharing options...
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