1969 Camaro 700r4 swap. I have a 1969 Camaro that the transmission was swapped out with a 700r 4 and I'm having trouble with a rolling vibration I've shimed the transmission to try to get the pitch angles correct and it has not helped. it was shimmed about a 1/4" to start I have shimmed it an additional 9/16" still having the same trouble any suggestions would be appreciated.

 

Take driveshaft to a driveshaft shop and have them check balance?
Jack stand Camaro and view driveshaft from underneath while in gear?

 

I should have mentioned I had the drive shaft to a shop and it checked out great. I guy I talked with mentioned about the angle of the transmission as opposed to the rear end they both are pointing down the end of the transmission is pointing towards the ground the pinion is pointing towards the ground so I have been shimming the transmission but I've shimmed it more than what I thought it should need. Thanks

 

Trans should point up by the same angular amount the rear axle points down.

 

I've been trying to do that with shims but I've run out of room transfer is hitting tunnel

 

Look up pinion angle shims, to raise the pinion end of your rear axle. You put them between the leaf springs and spring perch on the axle tubes.
And you need to be using an angle finder to know what angles you're playing with. Guesswork won't get you there.

 

If you have a smart phone there is a drive line angle app. Drive line angle don't care if something is hitting they have to be right. You will need to cut your floor or change the angle of the pinion as needed.

 

Thanks for the help. I've been looking at the shims and reading about shining, sounds like that's where the problem is thanks again

 

I've been using an angle finder and I found that the rear of the transmission is pointing down about four degrees in the pinion is pointing down the same. Is it typical that the pinion of a stock 69 would Point down approximately 4 degrees or is this not correct thanks

 

Compare both angles to the rocker panel as r/panel is the reference plane.
Generally, pinion and carb mounting surface on intake manifold are parallel with rocker panel.