rustyguns

I took my bushings off the prop shaft in the torque tube and forgot to mark where they were connected.

is the balance that critical ????? am i gonna get alotta vibration??

should i get it balanced?

FYI stock 99 corvette

thanks for any help!

mphox

Just replaced my couplers. I did mark the clocking of bolt pattern but did not check shaft runout prior to disassembly. The shaft runout I have is .025in. max. Too much for a typical drive shaft but TT propshaft is a slightly different application (before trans not after). I spoke to many custom racing drive line manufacturers (corvette TT drive line included) and could not find one that could balance a propshaft and bearing assembly together. I also did not find anybody that could give me acceptable shaft run out numbers (besides GM service manual). If you have a way to measure shaft runout I would be interested in what you measure (bearings in v-blocks with dial indicator) . Also if anyone else has measured shaft run out I would be curious what is considered acceptable without getting any vibration.

rustyguns

guess i will slap it together and see if it vibrates

davidfarmer

I agree that finding a way to balance might be difficult, I've never done it. Good news (or bad news depending on how you look at it) since the shaft spins at engine speed instead of trans speed, you'll know quickly if you have a problem.

mphox

That is what I am doing.

rustyguns

works good