Driveline Vibration

[ldtc]

Have Driveline Vibration About 60mph Tci 727 Tci Conv.b&m Flexplate Balanced Steel Driveshaft

 

[demon seed]

Have Driveline Vibration About 60mph Tci 727 Tci Conv.b&m Flexplate Balanced Steel Driveshaft

Check your u joints that they're not siezing up also that the bolts are tight at the pinion shaft u joint clamps. When you notice the vibration carefully shift to neutral and see if vibration goes away as engine idles down. You could also have a brake drum whoes weights have fallen off. Any number of things.

Terry