Front Passenger wheel dragging in 4HI

[quietjet]

Just noticed my passenger front wheel is really dragging when I'm making a turn when I'm in 4HI. Any ideas? Thanks

 

[Luke]

Dragging or Binding? What kind of surface are you turning on?

Any surface that won't let the inner wheel slip (it has a shorter distance to travel) and it's going to bind.

 

[quietjet]

OK. I've never noticed it before. The surface was asphalt. The inner tire left a "skid mark" and the steering was heavy. I thought the front differential would have compensated for the different wheel speeds.

 

[tjkj2002]

OK. I've never noticed it before. The surface was asphalt. The inner tire left a "skid mark" and the steering was heavy. I thought the front differential would have compensated for the different wheel speeds.

Nope since the front diff is being turned faster then the rear diff due to the gearing difference between the front and rear diffs.


When in part time 4wd(and 4 low) the front and rear drive shafts are locked and spinning the same speed no matter what.Being the KJ uses a D30a front diff and a 8.25 rear diff the gearing can not be exactly the same so the front will spin 1%-5% faster then the rear and that is to much for the open diff to compensate for while turning or even going straight.Why it's called "part time".Full time 4wd,if you have the select trac t-case,has a open diff in the t-case allowing the front and rear driveshafts to spin and different speeds so you don't get that binding on high traction surfaces like dry/wet pavement.

 

[quietjet]

Most helpful. Thank you.