My vehicle specs:

86 SAS 4Runner with 83 toyota rear springs up front. 2.5" drop hanger. 5.5" shackles. Dual case setup with Marlin crossmember/skidplate. Low pinion elocker in front axle. U-joint shaft with long slip.

I've put about 250 easy miles on the rear to break the new gears in. No death wobble with this setup. Just a slight shimmy @ 40mph. Don't know caster angle because I haven't taken it in to the alignment shop yet.

So, today I disconnected the rear shaft so I can run it in FWD to break in the front diff gears. With the steep angle on the t-case flange, I can only go 10mph max--pushing it with lots of vibes.

Without cutting/rotating the knuckles, will shims fix the angles? Here are some pics...








Too much angle on the t-case flange u-joint...