I went through every TM, and every thread I could find on the problem. There's a universe of troubleshooting, and despite a large consensus that it's "normal", I have a hard time accepting that. The problem was there (albeit less noticeable) with the G177's and I immediately thought it was the age of the tires/balance. Wanted to change to larger, and the 1600's were available, and nearly new. Despite being date coded 2004, they'd never been run, and stored flat palleted inside a hangar, mounted on combat rims with 35 to 50 lbs each.
So far, here's what I've done, none of which has resolved/reduced/increased the original issue:
1. Increased air pressure in all tires to 100lbs, then brought down to 85 (max pressure for the combat rims) Allowed to sit for a day, then reduced to 80, ran for 2 hours on city roads (back up to 84). Definitely felt a lot stiffer, and almost zero body roll. But bounce was still there, still random.
2. Reduced air pressure to 45lbs, same results.
3. checked toe-in, via string method, 1/4" out. adjusted. same results.
4. checked and refilled every grease fitting in the front end - found the drivers side hub has a bad seal, but both side accepted at least a tube and 1/2.
5. R&R both front shocks with Monroe 65116 new.
6. Fluid balanced fronts (50/50 coolant, 40oz)
7. Checked the play and the dogbones in the front and rear. Yes, the rear has play as expected, so probably unrelated to the bounce.
