Leaderboard

Diff issues are a red herring in this issue. Those cracked bushes will allow the diff to rotate under load, this will be added slack in the drivetrain. The wheels and tyres are held in place by the suspension arms, struts and bushes in the system. Something in there must be amiss for the tyre wear issue you’re seeing. Going by those diff bushes, there will be other very well worn bushes throughout the whole suspension system on your tribeca. Pretty common for older vehicles to have issues like this. Cheers Bennie

The rear tires should be very close to 0 degrees toe in. With the tires on the ground, get someone to help with a measuring tape and measure between the front and rear of the rear tires. Keep the tape as high and straight as possible at the front of the tire, then use the same height at the rear of the tire. Hold the end of the tape in the outer groove of one tire and read the measurement to the outer groove on the other tire. The two measurements should be the same. If the measurements are different, one side or both sides have worn lateral link bushings. Wear or softness in the front or rear lateral link bushings will cause sway. It lets the tire toe in or toe out on its own. The front lateral link inner bushing has an adjustment washer for toe adjustment. The outer connection looks like a tie rod end. Check it for looseness.

Good god that's a nice Brat! Got new wheels and tires on my EA82 wagon and I promptly took it on some desert adventures.