Re: 68 Riviera driveshaft repair- this could get expensive!
One thing to be cautious of is the shop telling you your shaft or shafts are "out of phase", they are suppossed to be. Different years are different degrees of out of phase, most are 67 1/2*. Get a shop manual to find out exactly what yours is suppossed to be.
Classic and Muscle Automotive
12 Cook St.
Norwalk, CT 06853-1601
Day Phone 203-324-6045 ET
NailHead Mini-Starters '53-'66
Adjustable Roller Tip Rocker Arms - All NailHeads
Custom Forged Pistons
Many parts to numerous to list
"If I can't get it, you don't need it!"