Johnny Riv

Thank you both, it's how I'm seeing it but know others have had more experience with this kind of thing. These driveshafts are an interesting topic and I do feel fortunate that my Riv is no longer plagued by the vibrations it had before. In fact, I'm going to go for a drive in it right now while the weather's good here! By the way, for anyone who is searching in the Twin Cities are of MN for a good driveshaft/driveline service business, Proven Force in Maple Grove gets an enthusiastic recommendation from me. I also recommend having the parts in hand because it seems all of the good stuff for these driveshafts takes time to source.

I recently had my driveshaft rebuilt on my 1966 Riv and they did a great job, with correct phasing and it's running very smooth with no noticeable vibrations. However, there was some concern from a tech at the shop that the pinion angle was too steep at 12 degrees. I have the 1966 Buick service manual and it specifically states that for the Riviera there's no need to adjust pinion angle if there is no rubbing or scraping or banging of the shaft against the tunnel or anywhere else. But 12 degrees does seem a bit steep, regardless. I wanted to just throw it out here as I see a lot of great experience, advice and guidance on this forum. I'd appreciate any thoughts on this.

Thank for the info, EmTee!

Thank you again, JZRIV! I'm taking the driveshaft out this weekend and will get a closer look at it. I would rather rebuild it than replace it if I can.

Thanks so much for your reply JZRIV! now I have another question for anybody that may know the answer on this forum. Would a Buick wildcat drive shaft from 1966 work as well?

Does anybody know if there is any compatibility between years with drive shafts for a 1966 Riviera. My 1966 Riv driveshaft either needs rebuilding or needs to be replaced. Looks like getting parts for a rebuild is quite a challenge. Since I may source a used shaft, I am wondering if the 1966 has a unique one. I’m having trouble finding that out, but I’m assuming it’s possible because it seems the drivetrain to be a one year bridge from first generation to second generation. Just looking for a little guidance here From those of you who have a lot of experience with these.