[RICK LAKE]

kyleb Kyle There are 2 angle to you to have matched to eliminate vibration and damage to both trans and rearend. You have a right to left and up to down angles. Having a longer trans is not helping either. Having a 1' driveshaft is a problem to start. Sharp angles. The best thing to to find a chassic guy who can find the center line of the car, check the angles, setup the trans and rearend to offset each other. The other thing could be the trans mounts or rearend mounts if they have too much play of deflection in them. Any twisting with also stressout the pinion bearings. If you are hard driving this is only going to increase the short time. Have the driveshaft checked for balance also, the same with the output shaft bushing. You want no to VERY little play. I don't have an endplay number but if you want one I will find one for you with the T-56 trans. I think you will find that everything is out just a little and causing this problem or you could still have the wrong pinion bearing, or wrong preload. Preload should be 25 inch pounds of drag when rotating just the pinion in the carrier housing. Hope this points you in the right direction. Are you running the Jag plate setup for the rearend or a yoke setup (driveshaft)and is there any weight plate on it?? Rick L.