hey guys i know this has been poasted before about the vibration in o/d over 40mph. i tried the shudderguard and im still tryin to see if it fixed it. how long do u guys think it will last before i will have to do the tranny? are there any other things i should look at before i assume its def the tranny?

 

Could be an out of balance tire or a driveshaft u-joint going out. What makes you think it is the trans?

Whats a shudderguard?