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So if the XJ runs rough before it reaches operating temp does that rule out o2 sensors? Also if I take the vacuum line off the PCV (rearward vent on valve cover) the idle will rise then drop back to normal range and it seems to run better with that off? I dont know if that helpful for anything...

new controls arms are on and I removed the drop brackets. Jeep drives much better. I did not measure any angles but I can tell the pinion angle is a little off. No vibes, tracks nice, and steering feels better. UCAs at 15.5 LCAs at 16.625 Will still upgrade my steering box at some point though

will test the TPS to rule that out, any way to rule out IAC?

not Mopar but not bad quality

All of my searching has left me clueless still, here what ive got... 01 XJ with new Jasper 4.0 with roughly 5k miles on it since install 4 years ago. Jeep dosent get driven much but im hoping to change that and I want to get it it good mechanical condition. As the title says it has a rough...

Adjustable arms inbound Im going to get the caster where I want it and then go from there. Thoughts on removing the control arm drops b4 the new arms go in?

Wow! get what you pay for I suppose

Yea the steering box could be my main culprit, Ive seen people getting a Redhead box, what other option do you recommend? The box at least needs to be fixed regardless if its the problem or not

Yea those match stock lengths, im currently at LCA 16.25 UCA 15 and need I guess shorter uppers. A side view of the RC drop brackets you can see the lower mount is a straight down drop and the upper mount is down and bumps it forward roughly an inch. I think im dealing with a compound issue of...

Yes all joints are healthy Trackbar is for the correct lift I did some measuring last night and it looks like my pinion angle is 2° off and my caster angle is at 4°. I believe a little more adjustment there will get me pretty good. Am I correct that the front diff should be parallel to the...

they are steelys from rustys offroad, just cant remember the offset RC adjustable trackbar I do have some play in the steering box, which sucks since its maybe 2 years old

Any specific numbers I need to pull?

w/o trans drop I had some pretty bad vibes, at the time it was easier to make some spacers than go for the SYE kit Im running 31s and they are even with the stock flares. no clue on backspacing

yes its the RC forged adjustable trackbar im basically running this https://www.roughcountry.com/jeep-suspension-lift-kit-633xn2.html?find=2001-jeep-cherokee-xj-4wd-738826 but with stock control arms and control arm drop Ill get some pics and numbers tonight

Ill have to get pics tonight. as it sits now RC lift 4.5 full leaf pack 3in spring with puck RC shocks all around RC control arm drop brackets Dropped track bar pitman arm for lift sway bar discos 1in transfer case drop Steering angles look good (to me) After adding the control arm drop the...

and I will be staying with the 4.5 lift

Track bar is dropped at the frame

Ive had my XJ around 10ish years now and it just a back up rough weather and fun haver at this point. Years ago I installed a 3in RC lift with full leaf pack, once I installed the back was a lot higher than the front so they sent me some pucks to level it out. So its setting at 4.5-5in lift...

thanks guy i appreciate the help, I will take a look into your suggestions and post back when the issue is resolved

replaced with a good IAC, by rough idle i mean a surging idle, tach is constantly jumping 200 rpm or so. and if i am say backing out of my driveway (so just barely applying throttle) and let off the jeep almost stalls but picks right back up. does not always do that though Jeep just has around a...