shelby4130 Posted September 29 Share Posted September 29 Hello everyone! Hope this is the right place to do this. Just wanted to pop in to thank everyone for their contributions to this forum. I've just recently made the switch from a Cherokee (currently still have it, a 96 that I've had since 2007 and love!) to a Comanche. May or may not use the Cherokee to complete the Comanche, it's a project for sure. Picked up a 1988 that was originally a manual trans, 2WD truck.....now "mostly" (??) through its conversion to an auto and 4WD. The donor drivetrain, including ECU+engine-side harness is from a 92 YJ. I will very likely be back soon with questions, ha. Anyhow, just wanted to say hi and introduce myself, and again, thank everyone for this wealth of knowledge. Cheers! Michael Link to comment Share on other sites More sharing options...
The86manche Posted September 29 Share Posted September 29 Welcome to the forum and the mj addiction! I hope we can help you get your truck back up and opporational again! Link to comment Share on other sites More sharing options...
Pete M Posted September 29 Share Posted September 29 welcome to the addiction! Link to comment Share on other sites More sharing options...
coolwind57 Posted September 29 Share Posted September 29 Welcome! Refer to the site for advice and knowledge. Contribute by adding to the site with stuff you know or pick up along the way. Link to comment Share on other sites More sharing options...
ThatJeepGuy Posted September 29 Share Posted September 29 Interesting swap in regards to source, what did the YJ come with for an auto Trans? Thats surely not a common package over an xj donor Link to comment Share on other sites More sharing options...
shelby4130 Posted September 30 Author Share Posted September 30 @ThatJeepGuy Good question! I was told it was an AW4 and NP231, so it's possible only the engine came from the YJ. Wasn't until you asked that I looked it up and realized that the AW4 was not sold with those YJs. It's entirely possible all of what was told to me was incorrect information. but I'll get it on a lift soon and start seeing what's what. I bought the truck knowing it would be a challenge, but the body is in pretty good shape and I admittedly immediately fell in love with Buff Yellow, haha. Link to comment Share on other sites More sharing options...
89 MJ Posted October 1 Share Posted October 1 Welcome! Feel free to start a build thread to keep us up to date with the progress. Link to comment Share on other sites More sharing options...
pizzaman09 Posted October 3 Share Posted October 3 Hello and welcome to the forum! A YJ donor for the T case is usually a challenge as they are clocked a little bit differently relative to the transmission compared to an XJ or MJ. Link to comment Share on other sites More sharing options...
Eagle_SX4 Posted October 3 Share Posted October 3 34 minutes ago, pizzaman09 said: Hello and welcome to the forum! A YJ donor for the T case is usually a challenge as they are clocked a little bit differently relative to the transmission compared to an XJ or MJ. This is a big misconception. The transfer case is not the issue it is the transmission. It is has the transfer case bolt pattern is drilled at a different angle to sit higher off the ground than the Cherokees. But in most cases you can re-drill the bolt pattern and it works fine.. Link to comment Share on other sites More sharing options...
derf Posted October 3 Share Posted October 3 1 hour ago, Eagle_SX4 said: This is a big misconception. The transfer case is not the issue it is the transmission. It is has the transfer case bolt pattern is drilled at a different angle to sit higher off the ground than the Cherokees. But in most cases you can re-drill the bolt pattern and it works fine.. Agreed. You can get a jig that you bolt in place on the transmission and use it to drill out holes in the right place. Transfer cases between MJ/TJ/YJ/XJ/ZJ/WJ at least all have the same clocking. Same with the full size Jeeps from 80-91. Though spline counts will vary. Link to comment Share on other sites More sharing options...
shelby4130 Posted October 3 Author Share Posted October 3 Well I'm happy to report that it's an AW4, which I suspect will make things easier as I go along. I've only driven it onto and off a trailer, so anything is possible still. Will get it onto a lift tomorrow morning to start poking further... Link to comment Share on other sites More sharing options...
shelby4130 Posted October 5 Author Share Posted October 5 Got to finally give it a once over, and I think I have a decent grasp on what's ahead, but will definitely be spending a lot of time on this forum as I go along. Spent a little bit of time just tidying stuff up and taking inventory of things. Not yet sure how to identify the block/heads to know what they came from, but everything so far suggests an early-mid 90s 4.0. I have a return fuel line and the older style valve cover. The ECU is a 56027-887 and is dated Oct 1993. Transmission is an AW4 with NP231J behind it. Couple of photos included. The outside photo is as it was, rolled off the trailer. Second photo is after I put the original wheels back on (Moab wheels rubbed a lot) and an inexpensive bed cover (for a current model Colorado). Link to comment Share on other sites More sharing options...
hgeranium Posted October 5 Share Posted October 5 3 hours ago, shelby4130 said: Got to finally give it a once over, and I think I have a decent grasp on what's ahead, but will definitely be spending a lot of time on this forum as I go along. Spent a little bit of time just tidying stuff up and taking inventory of things. Not yet sure how to identify the block/heads to know what they came from, but everything so far suggests an early-mid 90s 4.0. I have a return fuel line and the older style valve cover. The ECU is a 56027-887 and is dated Oct 1993. Transmission is an AW4 with NP231J behind it. Couple of photos included. The outside photo is as it was, rolled off the trailer. Second photo is after I put the original wheels back on (Moab wheels rubbed a lot) and an inexpensive bed cover (for a current model Colorado). Very nice! I love that bed cover. How's the fitment on it? Link to comment Share on other sites More sharing options...
shelby4130 Posted October 6 Author Share Posted October 6 Thanks, I like the cover so far, but I have not driven with it. It was easy to install. I probably don't have it on perfectly square because there's a small gap in the rear right corner. I'll probably try and adjust that to keep water out, but the front of the bed isn't straight either so it may be a one or the other in my case. Here is the specific one I purchased: https://a.co/d/9Z3HeSd 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