put in 8 3/4, now have vibration

Why would shorten the shaft 2" without first measuring it to even know what you need 1st...

I did measure first.

Who gave you what instructions on this measurement ?

self instructed...just eyeballed it and used a measuring tape

How long is that slip ? end to center of joint ?

I don't know exactly, will have to measure and post tomorow

Does the shaft you have taper at the weld yokes or is it the same diameter all the way thru ?

same diameter all the way

What diameter is the tube ?

Will have to measure and get back to you

depending what diameter it is it may be able to be retubed.... MAYbe

I think

,

PS - you sound like an expert in this area Supershafts, hence your name. Do you think this short shaft is causing my vibration, as Badsport seems to think? or do you think its a u-joint issue? Thanks for your advice!