My 85 CJ8 Scrambler wanders all over the road. All front end parts have been replaced that needed to be replaced. Has had a recent front end alignment. A 4" superlift was installed back in 1993 including a drop pitman arm. Front spring bushings were replaced a year ago. Rebuilt OEM steering box from PSI was installed last summer. Wheel bearings ok no play. Ball joints have no play. Four new shocks on last summer. New front stabilizer this summer. Jeep has 136,254 original miles on it. I'm running on Hankook Dynapro MT 33x12:50x15. This is the second set bought 9 years ago with @15K now on them. @1/2" tread left. Front U bolts are tight.
I suspect the tires. When vehicle sets over night or longer, and when you first begin to take off at about 20 to 35 miles and hour the jeep wanders/pulling from paint to paint. Then it seems when the tires warm up, only after driving 10 miles or more the jeep will track straight, but may begin top wander without notice. I've always ran with 23lbs of air on both sets. I ran the first pair until they were slick. The 4" lift put the castor at 2.6 degrees. I never had a issue with the tires until this past winter.
Can the tire have internal issues? I read about this at another forum. The shocks were worn out before replaced, but only one tire sits with a 5 degree slant when off the jeep. Rotating tires does not help.
Also, even after tires are warmed by driving, making a right or left sharp turn a slow speed causes the severe wandering to start again. Uneven pavement and bumps also exaserbates the steering.
Before, I drop @$1k for new tires is it the tires. Does Hankook MT's have interal issues after they age? Have they been recalled before?
Help Needed. Not sure I need an angle wedge for front axle if not needed since 1993. Can the big tires have this issue with soft spot developing while sitting over night?