Jumps on turns

[Gennybro]

It generally is the viscous coupler, that's the part that allows differential action between front and rear axles and is responsible for keeping the fulltime 4wd transparent on road.

Ah ha I thought so, damn , I'm getting good.

 

[jsk56]

Interesting reading - thank all of you for your input. My particular Cherokee uses CV joints at the axles, otherwise I would have looked at the axle joints. The CV's make no noise on turns, but I get a moaning/groaning sound from somewhere on turns. The driveline also seems to bind on long, sweeping turns. I am trying to "baby" it to make it last as long as I can. Thank you again for all of your input. Jeff

 

[carnuck]

Sounds like it may be in part time 4x4. That will cause wind up. Or the tcase is running out of oil

 

[Gennybro]

Nope none of the above. Found out last night that the broken hearted jeeper tried to align the front end himself and totally screwed it up resulting in wearing out a good set of tires. The jump came from him haveing the tires toed out to much.
He had me in tears laughing my a$$ off telling me that he was going 55 mph, and it started shakeing uncontrolably that he took his hands off the steering wheel and it straightned out.
To make a long story short, I had told him of a way to check your alignment useing a tape measure. [ I read this somewhere, so somebody correct me if I'm wrong]
Measure from the outside groove on the tire, front of tire. Then take a measurement on the backside of the tire same groove . The measurement should be pretty close [ I assume] his was 1/2 an inch off, so we readjusted so it was with in an 1/8 th of an inch, and now there is very little jump except on an extremely sharp turn. So things are better but not perfect.

 

[carnuck]

I use 2 2x6s with a nail sticking up near the end and C clamp to hold them together. Lift the front, Spin the tire and mark roughly centerline of both with a tire chalk. Drop it down and roll a few feet then measure front and back.