Rear End Vibration
I'm looking for some input on a rearend vibration. I've got a 69 Valiant w/ 904 tranny, 8 3/4 rear, spool and 3.91 gears. Car drives and launches great but once I'm into 3rd grear above 3,000 rpm I get a winding and vibration in the rear that progressively increases with speed. Talked with a few guys, some say pinion angle, some say the rear isn't set right, and others say the drive shaft is out of balance. Any troubleshooting tips to get this started? Thanks
I'm looking for some input on a rearend vibration. I've got a 69 Valiant w/ 904 tranny, 8 3/4 rear, spool and 3.91 gears. Car drives and launches great but once I'm into 3rd grear above 3,000 rpm I get a winding and vibration in the rear that progressively increases with speed. Talked with a few guys, some say pinion angle, some say the rear isn't set right, and others say the drive shaft is out of balance. Any troubleshooting tips to get this started? Thanks