KW4life06

iTrader: (12)

I've noticed that when I start to move from a dead stop, I get some vibration from what feels like the transmission tailshaft and driveshaft area. Did a search and most people said this is usually do to a pinion angle issue, but I'm running a stock torque arm so I don't think I can adjust it can I?

It has all new spicer u-joints also, and it was doing this before my 12 bolt install. Suspension is completely stock. Thanks guys.

Bob@BruteSpeed

iTrader: (16)

It is very common for the transmission mount to be broken, as the factory front torque arm mount puts a lot of pressure on the transmission. A broken tranny mount usually makes a clunking sound and not a vibration but it's a good place to start at.
Next I'd take a good look at the factory torque arm, as I have seen them bend approx six inches ahead of the rear-end. This will cause the front of the rear-end to angle upwards, and can cause a lot of vibration. Bob

KW4life06

iTrader: (12)

Where would the trans mount break? I checked it over briefly once before and didn't notice anything.

Supers

Check the angles and then see what that ends up telling you

Lambert695

iTrader: (17)

yeah man, check the angle. The mount just might be making the trans a little to low. I have some washers under mine and it cured the issues.