Hi guys,
I have a 98 2500 4x4 5 spd. 12v w/reg cab with 108,000mi. and i have one heck of a vibe on the highway at 60 and above, but it only get it after driving down the highway for at least 2 miles and then it really starts to shake! the whole truck shakes and i can look over at the passenger seat and rear bed and watch it shimmy!!
I have basically done just about everything i know and replaced everything on this truck that i can think of including 2 new set of tires and 4 sets of rear drums. I am totally lost and i am almost fed up with it. I am gonna tear apart the transmission and transfer case this weekend. Any thoughts or sugestions on what it might be? Anyone in northeast Ohio looking for a fun project this weekend and wanna help, because i need all i can get now?? I really can't afford to take it to the dealer and pay them thousands of dollars to try to diagnose the problem. I must add that when i had the new tires put on and when i ahve them rotated the rear brakes shimmy really bad until they get some more miles on them. i don't understand why it does that when ever you rotate or take off the rear tires. When i adjust the rear brakes they only rub in a certain spot not all the way around and it was like that with all 4 new sets of drums i got from 3 diff. stores?? well i am totally lost so any help would be greatly appreciated.
Thanks!
I have a 98 2500 4x4 5 spd. 12v w/reg cab with 108,000mi. and i have one heck of a vibe on the highway at 60 and above, but it only get it after driving down the highway for at least 2 miles and then it really starts to shake! the whole truck shakes and i can look over at the passenger seat and rear bed and watch it shimmy!!

Thanks!