Any ideas on this? Yesterday coming home from work I had my 99 250 2WD start a violent front wheel shimmy/wobble at 65 when I stepped on the brakes. it lasted for over 100yds let I got down to around 20mph.
I had a frozen u joint make my truck jerk back and forth intermittently. But being 2wd that wouldn't be an issue. Besides a bad u joint my steering box had some slop in it. When I replaced my box and hydro boost pump it fixed the problem