sufidancer Posted May 31, 2009 Share Posted May 31, 2009 I have found a new Transmission from a 1986 MJ 2.8 with TF904 mated to a command trac 207 T case. My Truck is a 1986 MJ 2.8 with a TF 904 mated to a NP229 selec trac T case. So the only difference is the donor vehicles T-case is a NP207 and my truck has a NP229 can I use the transmission from this donor vehicle even if the T-cases are different? Your thoughts? Link to comment Share on other sites More sharing options...
mvusse Posted May 31, 2009 Share Posted May 31, 2009 I was not aware of Selec-Trac ever being a stock option in a Comanche. Unless I'm wrong, the 207 is the correct one for your truck. You can unbolt the transfer cases and set them side by side to compare case length and input shafts. Even IF the inputs are different, you can swap the case and transmission as a combo. Link to comment Share on other sites More sharing options...
sufidancer Posted May 31, 2009 Author Share Posted May 31, 2009 Hi Mvusse, thanks for the quick reply. I am certain my XLS MJ 86 2.8 T-case is Selec track. It has the ol crappy vaccum actuated 4x4 system. Unfortunately the donor vehicle T-case is a Command Trac 207. And worse yet I would have to purchase the T-case separate from the guy as he is not throwing it in with the TF904 which he states has 104k miles on it. If I can get him down on the price of the tranny to around 200 bucks I may consider this transmission if I can bolt it to my 229 t case. I am thinking the shaft lengths will be the differing componants. Your thoughts? Link to comment Share on other sites More sharing options...
Geonovast Posted May 31, 2009 Share Posted May 31, 2009 The 229 should bolt up just fine. I was not aware of Selec-Trac ever being a stock option in a Comanche. Unless I'm wrong, the 207 is the correct one for your truck. You can unbolt the transfer cases and set them side by side to compare case length and input shafts. Even IF the inputs are different, you can swap the case and transmission as a combo. Yes it was an option. Beaterjeep's 86 has it as well. Link to comment Share on other sites More sharing options...
beaterjeep Posted May 31, 2009 Share Posted May 31, 2009 The 229 should bolt up just fine. I was not aware of Selec-Trac ever being a stock option in a Comanche. Unless I'm wrong, the 207 is the correct one for your truck. You can unbolt the transfer cases and set them side by side to compare case length and input shafts. Even IF the inputs are different, you can swap the case and transmission as a combo. Yes it was an option. Beaterjeep's 86 has it as well. Very correct, and I also have a SYE on said 229 Selectrac case. :brows: Link to comment Share on other sites More sharing options...
sufidancer Posted June 1, 2009 Author Share Posted June 1, 2009 I appeciate all the info folks. It seems that once I am up and running again the only thing left to fail will be the transfer case. :mad: And if I know my Jeep that is just what is in store for me. Link to comment Share on other sites More sharing options...
Pete M Posted June 1, 2009 Share Posted June 1, 2009 It's an old Jeep. It's always looking for new and exciting ways to break down. :D Link to comment Share on other sites More sharing options...
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