Should my rear leafs be flat with stock suspension or are they just old? And when I say flat I mean o_____o. Haha

 

You just answered your own question, heck no, they gettin old brother

 

I was afraid of that...

 

hi just bought 93 gc 4.0l for 800 bucks. it has a automatic transmission but it wont shift into 1st gear. when i have it in 1st. its in 2nd gear. it wont upshift or downshift in drive. also overdrive isn't working so basaically i have 2nd and 3rd gear. i replaced the tranny fluid and filter and still no luck. any ideas on how to fix this?

 

Sure! Consider that the butterfly valve pivots on one point.

The factory TB has a tapered bottom section. When partially open, the now-upper half lets it a lot more air than the now-lower half because there is more distance between the edge of the valve and the TB wall. Lets say total airflow is 100 CFM with 55 passing via the top and 45 passing via the bottom. With a straight bore, you'll get a 50/50 split, but since the bottom is wider anyway it'd be more like 55/55 CFM. If you bore the whole thing out you keep the ratio and might get say 60/60. But even if you were to increase the diameter on the lower half that'd be 55/60.

If I didn't fail so hard at drawing I'd make a purdy picture. If you draw it out yourself you should see what I mean lol. And of course all those numbers are made up just to demonstrate my point

 

It's very likely this is your rear most universal joint. Crawl under there and grab the drive shaft near the rear axle and see if there is ANY movement at all in the U-joint

 

Mine are exact same way, sorry to say they are shot, done, no good.

Btw really enjoyed o_______o

 

1988 XJ 4.0L Aw4 4x4

I get a loud pop noise coming from the front end when moving like out of a parking space. The pop noise only happens when I'm turning the wheels and moving slow. It does not happen all the time, about 1 a week.

I have tried to mimicking the sound while looking under the front and grabbing and trying to see if anything is loose with no luck.


U-joint or ball joint?

 

Try cranking down the trackbar bolt on the frame side, worked for me.

 

I had to read it three times but I finally understood.

Gonna search for some butterfly valves now... 60mm. Anyone kniw for certain if the air intake TB opening is indeed 60mm?

 

Cherokees only have U-joints, and yeah i'd say it was something like that.

 

I put my doors back on for the first time today and they sag a little, nothing I can't live with, but I believe the reason is because the sleeves that go around the hinge pin were shredded when I took them off. Any ideas on finding or making some replacements?

 

There's a writeup on a Doorless mod w/ sag fix, but it's for '97+

 

Aren't there 4 ball joints that hold the 2 knuckles on the axles or am I wrong?

 

Should I replace this? I think it's a grease boot, it's out of the cv joint on the front drive shaft.