ksurfer2
Well-Known Member
I believe it is time to regear my car. Current set up is a 512cid, 727 trans with the PTC 8" converter. Crossram with dual eddy 1407's. Cam is a solid flat tappet 600/600 (don't have the rest of the specs handy). Running 30" tall drag radials. Current gear ratio is a 4.88. In the quarter I am trapping right at 7,000rpm at between 118 and 120 mph and have run a personal best of 11.04. This is in a 64 dodge 330.
I would like to gear down to a 4.30 or 4.10. Not too sure which is more appropriate.
When researching gear sets, there appears to be two different carriers, 1 for a 4.10 and down gear ratio and 1 for a 4.56 and up gear ratio. The 4.30 gear requires a 4.10 and lower carrier. I would assume that any change in gear ratio to anything 4.30 or lower will require more than just a gear set. I spoke with a shop today about doing the swap, but didn't know enough to ask the right questions. Any assistance would be greatly appreciated.
I would like to gear down to a 4.30 or 4.10. Not too sure which is more appropriate.
When researching gear sets, there appears to be two different carriers, 1 for a 4.10 and down gear ratio and 1 for a 4.56 and up gear ratio. The 4.30 gear requires a 4.10 and lower carrier. I would assume that any change in gear ratio to anything 4.30 or lower will require more than just a gear set. I spoke with a shop today about doing the swap, but didn't know enough to ask the right questions. Any assistance would be greatly appreciated.
