Actually, the 2.73's and up use the 3 series carrier.
2.56 and 2.41 uses a 2 series carrier. So, no you can't use 2.73's or higher number gear ratios in the 2 series carrier without a spacer. But, a lot of people don't trust spacers. Using a 3 series carrier for 3 series gears is preferred.
But, my 75 Pontiac Service manual shows that 2.73, 2.93, and 3.08 gears were also available in the 75 a-body, so they didn't only have a 2.56. So, if you're not sure what it has, you might have a 3 series carrier if you look closer at it.
__________________
Steve F.
|