vibration at 40

[GO OVRIT]

Both my 92 and my first 93 have always had a slight vibration from around 40 to 45mph. I've had 6 different sets of tires on each, so I don't think its in the tires. I've replaced u-joints in both trucks, the carrier bearing in the 92, and tie rod ends in both. Both trucks are tight. Both are lifted. I never noticed the 40mph vibration in my 93 dually. Anybody found an off-the-wall reason for a slight speed related vibration?
Mike

[gear jammer 91"]

You said both trucks with the vibration are lifted? If so it could be drive line related. It doesn't take much to get them at the wrong angle.

[RSWORDS]

Both my 92 and my first 93 have always had a slight vibration from around 40 to 45mph. I've had 6 different sets of tires on each, so I don't think its in the tires. I've replaced u-joints in both trucks, the carrier bearing in the 92, and tie rod ends in both. Both trucks are tight. Both are lifted. I never noticed the 40mph vibration in my 93 dually. Anybody found an off-the-wall reason for a slight speed related vibration?
Mike

I dont know how you feel a vibration with those swampers on ther mike. lol

[mprmn08]

i agree with gear jammer. you could check your pinion angles and make sure there good and adjust accordingly with wedge shims and what not.

[GO OVRIT]

Both my 92 and my first 93 have always had a slight vibration from around 40 to 45mph. I've had 6 different sets of tires on each, so I don't think its in the tires. I've replaced u-joints in both trucks, the carrier bearing in the 92, and tie rod ends in both. Both trucks are tight. Both are lifted. I never noticed the 40mph vibration in my 93 dually. Anybody found an off-the-wall reason for a slight speed related vibration?
Mike

I dont know how you feel a vibration with those swampers on ther mike. lol

I've got the PitBulls on now, and they ride better than the bfg all terrains.

[GO OVRIT]

i agree with gear jammer. you could check your pinion angles and make sure there good and adjust accordingly with wedge shims and what not.

My 93 was off a little, but then angle on the 92 is good. The vibration is not that bad(I've been living with it for over 5 years), but I would like to get rid of it. Its enough that when I have to stay at 40 or so the rattles all come out to annoy me.

[mprmn08]

i would say to just check the angle of the u-joint at the axle and at the trans and make sure there the same. if not just shim accordingly.