Update to a problem......

[rob21]

So I started a thread over a month ago addressing the issue of my cruise vibration...
http://www.expeditionforum.com/f42/rear-wheel-bearings-u-joints-22344/

Got busy right after Christmas moving and such. Today I got around to replacing the rear wheel bearings/seals. Fairly simple job to my surprise. Changed the oil while i was at it too. Problem is still there. Im slowly scratching stuff off my "could be" list. Next im going to remove the drive shaft and drop it by a drive shaft shop for a thorough check. I'll report back.

 

[TactialMonkey]

do you think a wheel could be slightly out of balance too? if its not the bearings

 

[rob21]

**update**

do you think a wheel could be slightly out of balance too? if its not the bearings

I upgraded the wheels to EB edition wheels with new tires. It was doing it before the wheel swap.

Today I had the drive shaft balanced and U-joints changed. It helped some, but its still there. I upgraded the gears to 3.73s, so I know its not that. It was doing this before the gear swap. I replaced rear wheel bearings......so far the only thing in the drive line I have not changed is the axles. I do not believe this is an axle problem. Would a transmission cause this vibration? Its got to be something that spins as im driving.....so drive shaft, rear gears, axles and wheels. Anything below 30 is smooth. I dont wanna tear into the trans. I'll slide under there and just look around at stuff and see if i see anything that looks off I guess.