72 Sierra Grande
 

Morning Guys I have a 2 piece drive shaft can someone tell me if the 5 unvesial joints are the same size the truck is a half ton 2 wheel drive 350 motor, 350 ,transmission Thanks Saddletramp

Re: 72 Sierra Grande
 

Sorry My bad 3 Universal joints

Re: 72 Sierra Grande
 

My ‘71 GMC big block half ton truck had two different size u-joints if I remember correctly. But I don’t remember the combination other than a 1330 on the pinion yoke rather than a 1310 like the small block truck had.

Re: 72 Sierra Grande
 

Personally I would measure them. There's no telling what may have been charged in the last 50 years.

This link should help you determine exactly what you have.

https://www.dennysdriveshaft.com/c97...s_by_size.html