I'd like to stick something a little more comfortable in the XJ. Are there any other make/model seats that are pretty much bolt ins?

Electric isn't necessary.

I'm a big guy - 6'4" 300 lbs.

 

ZJ seat swap.

 

ZJ or WJ seats. I have WJ leather seats in mine. I'm 6'2" and barely have enough headroom. Just a heads up. They're comfy as hell though.

 

Would the high idle switch mod work on my 99 5 SPD?

 

Maybe a sunroof? JK.

 

Is it ok to have 4.10 gears in the front and 4.11 in the rear? Or vice-versa? Ive read that that minimum of a difference isn't going to affect anything but I just want to double check.

 

About 1/4" rotational play is what I've noticed on what I think is my "okay" driveline. I have vibes from... something... but I can guarantee that that much slop is absolutely unacceptable. Time to replace some U joints and grease that slip yoke. 1996 should be the first year of the greaseable one.

Yep a lot of people on here have great luck with AMSOIL's ATF as well as the Mobil 1 product.

When shopping for a fluid for the AW4 automatic transmissions, make sure that it meets one or more of the following standards:

- Dexron III or later
- Mercon or later
- JWS-3309

Castrol Transmax Synthetic Multi-Vehicle is a great example of what appears to be an "ideal fluid" as it is certified in the Dexron and Mercon families as well as recommended for use in JWS-3309. No Chrysler ATF+3 or Type F funny business, so you know it's going to be reliable, not a "multi-vehicle" ATF that has every single transmission ever built listed as 'suggested application'.

Synthetic should be considered very important to the transfer case. The planetary gears are ALWAYS spinning (just not always under load), the fluid capacity is rather low and there is NO cooling system. In fact if neglected ATF actually evaporates out of these things... do a search for NP231s running dry and blowing up if you want proof...

NP231 isn't picky. Run the same or run whatever. New Process Gear certified the NP231 under every major ATF standard since the mid-'80s so have fun!

In your 4.0L, no. The PCB does not have the pin equipped for it. Some have speculated that you MIGHT be able to solder one on, but do you really wanna solder your own 1999 4.0 manual shift PCM? lol

Same difference. Depending on axles that's just the way it is. You're not supposed to use 4WD on pavement anyway so don't worry about it.

 

They're the same thing, like 3.54/3.55 or others. I usually notice a difference when different brands use the 'same' ratio during the same production period

 

I'll take a look tomorrow morning. I didn't notice and play in the actual driveshaft though.

 

It either has a boot on it, (unless it was taken off) and will look like a bare splined shaft, or it has a seal housing that it slides into.

 

So either of these would be a straight bolt in, or would they need to be adapted/modified?

I'm liking the leather idea, but then I'd have to change the rear seat as well.

 

Driver door is only opening half way. Any idea what could be wrong? Feels like it is stuck on something. 1990 Cherokee.

 

Yeah it has a boot on it.

 

The limiter piece is gummed up or worn badly.

 

Thank you for the gear input!