drof fan

Just replaced the leaf springS on my 04 XLT. Now I have a (new) vibration between 20 and 35 mph. Took off the drive shaft and ran it in 4 wheel high and the vibration wasn't there. So, somewhere drive shaft back. Checked the u joints and they're ok. Had this one piece drive shaft put in six months ago to eliminate higher speed vibration I was experiencing. Don't know why the leaf spring replacement would cause a need to rebalance the driveshaft. Anyone???????

primalurges

Did your pinion angle change?

drof fan

Learning as I go. There rear bed of truck is now higher. So I would have to say yes??????

primalurges

You need to get your hands on a shop manual to check the angle because that can cause driveshaft vibration.

alsatropine

iTrader: (2)

Get up to speed and safely put your truck in neutral to see if the vibration does away..