I posted before about driveshaft vibrations and some suggestions were driveshaft balance and to check the pinion angle. I got the driveshaft balanced and it took away most of the vibrations but it still peaks at 50-60mph. What is the correct pinion angle? Doesn't the angle change under load? Its a 70 camaro th350 if that has any affect on the angle. Im assuming pinion and is angle of shaft to rear. Thanks for any help.