I want to convert my 1988 Comanche Pioneer from 2wd to 4wd

[PureRebel]

I wanna convert my Comanche. I would like someone to help me with what parts I need to get (axle, driveshaft, transfer case, etc) can someone tell me the gear ratio between the front and back. Do I need to drop a new tranny? Help!! Thanks!!

[Megadan]

Well, in order to tell you what to get, we first need to know what you have. Details on your current truck would help. 4 or 6cyl? auto or manual?

[PureRebel]

Sorry, my first forum... Its a 1988 Jeep Comanche, 4.0 L, inline 6, automatic, 2x4, 121,959 miles.

[Megadan]

No worries, just figured I would ask nicely before someone else chimed in rudely lol.

The easiest way to do it would be to try and find an auto 4x4 around the same vintage as yours that you could use as a parts truck.  The big parts are easy enough to get, but the small things can get you.

As far as the gear ratios go, they will be the same between the front and back.  With an automatic, your rear ratio should be a 3.55:1,   The front axle from an auto 6cyl XJ/MJ will also have this 3.55:1 ratio.

[87MJTIM]

Things that are direct swaps: front axle, 4wd trans and tcase, front drive shaft (automatic for automatic.  manual trans will be too short.) Be sure to get the tcase shifter and linkage from the donor.

 

Things that will not swap:  rear drive shaft.  You need to have your existing DS shortened to fit for the added tcase.  

 

Others may/will add to this list.

[Seegeer]

I have everything you need in Western PA. I have an 87 6 cyl. 5 speed 4x4. I was going to do a swap on mine and I have decided to just keep the auto 2.5.