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Lazyxj, thanks for the info. I never thought about using those and I’m an electrician by trade. Will definitely add one to shop. Won’t make it to his XJ till the weekend to help him out, but keep the info coming, maybe with you guys knowledge and me helping him test electrical, we can get him...

This is the information I have from him I've put about 300 miles on it in this Jeep.Is was idling ruff the day i pulled it in the shopNext day, won't hit a lick I show to have fire and signals to the from PCM, Crank, cam , ignition coil, and injector's 50 psi fuel at the rail Sent from...

Hey guys, I’ve been absent awhile. I had a buddy call me with some issues. Haven’t went to check it out myself yet, told him this weekend. Anyhow, he has a 2000 XJ 4X4 4.0, he put a motor out of a 2001 XJ 2X4 in it. He said it run for a couple weeks but ruff, now it won’t do anything. He has...

My fenders are trimmed. I will try the bump stops, just really like the travel. Thanks guys Sent from my iPhone using Tapatalk

Hi guys, I currently have a 6.5 inch long arm lift on my 98 XJ. In a hard flex I still get a little rub with the 35’s. I am planning to add 2 more inches of lift. What is the best way to get the extra lift add still have a decent ride? I not only off-road this XJ, I also drive it on road some...

Tim_MN, the motor I’m referring to is a 04 WJ. My Jeep is a 98 XJ. Also, my XJ doesn’t have a cat on it currently, so you are saying that I may be running in limp mode with my XJ and not throwing codes? If that is the case, then that may be why it doesn’t have the power I think it should. I...

Thanks guys. As far as the motor that is currently in my XJ, it runs fine other than it seems to have power loss. It doesn’t use oil, I have done a complete tune up of everything without cracking the engine apart. I may see a great increase when I can finally back it out of my shop. I just did a...

Hey guys, I was wondering how hard it would be to install a 2004 Grand Cherokee 4.0 into my XJ. I just had a 04 Grand Cherokee engine rebuilt and now that I have decided to forgo the Grand build I am wanting to install the motor in my XJ. I know the motor mounts are different but luckily I work...

Not all the way. Just from where the hard line connects to the braided rubber line above the rear axle, unless I can’t find where my fluid is being held up. I think it is in the tee though. I have my rear lines unhooked, I can stomp the brake and not get a drop of fluid. I’ll find where it’s at...

Hey guys, I just did a rear disc brake conversion on my 1998 XJ. I used the rear calipers off a salvaged 2004 WJ I picked up for the motor. Being an electrician in a machine shop we made all my brackets for mounting everything. My question is what size brake line would be best? They both had...

I don’t see anymore slots in the shaft for another locking ring. Would there happen to be 2 thrust washers under the input shaft gear? Or is it possible that the pilot bearing for the main shaft could be installed to deep? Didn’t have any issues with the case. It worked fine, tail housing just...

I just put a new SYE in my 231 transfer case. There is around 1/4”-1/2” play in and out of the main shaft. It could have been like that before, should have checked. I have tore it down 3 times to see if I had forgotten something, snap ring, etc. I haven’t left anything out. If a part was that...

Thanks, I actually have a 98 Cherokee with a 91 motor, transmission, and transfer case. 98 TCM and ECU. I recently had to change my transmission to a 2000 because I couldn’t get the TCM to read the 91. (Didn’t find out this till about 2wks after I bought it, tried to buy a speed sensor, guess...

Also, like I said, it’s a complete motor. How hard would it be to swap over to the electronic ignition? Would it be worth the time?

I have a 91 4.0 in my xj. I also have a blowed up 2000 Grand Cherokee 4.0 setting in the shop. I was wondering if the intake manifold of the 2000 would be an upgrade for my 91. My 2000 is a complete motor, minus block, has a fist size hole in it. Would the 2000 intake have a noticeable...

Thank you very much lawsoncl. Since I bought this Jeep and started doing upgrades I have found out a lot. Luckily I haven’t had any CEL from the motor, (all transmission) but it’s a 98 Cherokee, they installed 91 4.0, AW4, and np231. The ECM and TCU are still 98. I am happy with the 4.0, only...

Hey everyone, I have a 91 np231 transfer case and a 2000 AW4 transmission. Will this work? Long story on why everything is mismatched but anyhow. Someone must have upgraded because the transfer case is 23 spline already, but I have heard something about the spline pitch being different between...

Ok, went ahead and removed the transfer case. They are both 23 spline. So that’s good. Now is the speedometer sensor in the transfer case tail housing going to work or do I need to change it? Can’t seem to find exactly what year the transfer case is. Another, what kind of transmission did...

It doesn’t turn. Also, can you tell me if the speedometer sensor in the case is going to work. Looks like 97-01 changed that sensor. The one in the transfer case not tranny