Guys do you have any sugesstions on drive line vibrations I have checked the bushings and they seem fine but you never know I plan on replacing them anyway. The only time it vibrates is when I'm off the gas from going 70 or 80 it vibrates the whole 4runner I was just curious if there is a fix to this please help me out . Thanks guys!

 

Tranny mount? Driveshaft U-joints?

 

Most likely driveshaft related. Check the u-joints and the slip joints for any play.

 

You can have your driveshaft rebalanced if everything else checks out.

 

Do you have a lift? Did you correct your pinion angle? If the angle of the u-joint at the tranny is not equal and opposite to the one going into the rear end, you will get a pulsating vibration.

It could be the things listed above too. Or an out of balance tire. A loose tie rod end can cause shimmies at certain speeds. Although if it's related to power on or off, then start with the drivetrain.

 

i'd check the u-joints, and get the tires balanced if its been awhile on that

 

worn slip yoke on rear drive shaft is most likely. Check t-case output bearings too.

 

please put your info in your sig.. to rule out either half of your drive train.. take out your front shaft from your t case to your front diff.. at the same time unlock your hubs.. as i dont know your setup... if you have ADD and no manual hubs.. just remove the locking plates.. then drive it.. if you still have the problem then u know its not your front shaft, diff, or your CV's.. its a place to start..