Originally posted by hogrocket:
My boat is pretty heavy and I do haul some pretty good size loads at times. Maybe I should consider a frame swap with the 70--even though that rearend is only a 10 bol. I didn't realize the frame size was different between the 1/2 and 3/4 ton. I still need to find an 8 bolt front axle. Is a frame swap a huge undertaking? MM
It depends upon how many helpers you have.
A frame swap would definitely take care of the 6 - 8 lug axle in the front, and you'd have shorter gears in the rear. You can also interchange the carriers between the 3/4 ton and 1 ton differentials, so if 4.55:1 isn't a large enough ratio, you can go and find a 67-72 1 ton carrier (they usually have 5.16:1 gears) and swap them with no problem.
Unless your boat is a Yacht, in which case, I'd start looking at Macks.
(Just out of Curiosity, why are you wanting a rear end with more than 10 bolts? How big IS your boat?)
