Re: Should I just upgrade the 10 bolt?
I dont feel $2000 is a huge some for a performane part that lasts nearly the life of the car.
You could always buy the parts and attempt the rebuild yourself..although 12 bolts are becoming harder to find..may just be better to go aftermarket.
1971 Pontiac Lemans Olds 350
1973 Buick Centurion Ragtop 455
1974 Chevy El Camino Classic 350
1976 Pontiac Trans Am 455
1997 Honda Valkyrie 6 cylinders,6 carbs.