Top End Speed

[jmanz69]

You probably have 3.73 gears in the rear end. With that, you will sound that way at 85 MPH. You probably run about 3300-3500 at 70 MPH, right? If you put in a 700R4 you will gain top end spped because you will slow down the RPM of the engine. With OD you gain some extra room for the RPM. at 4000 RPM you will be going faster. If you got a 700 plus higher gears in the rear, 3.42 or 3.08, you could go even faster. You could just change the gears and not the transmission to accomplish more top end speed. Would probably be cheaper to do that. By the time you buy a 700 core, have it rebuilt correctly, have it installed, have a new driveshaft made, and get a new shifter for the extra gear, you could have bought a new carrier, and ring and pinion, plus have it installed.

Good luck. We can help with all your questions here.

jmanz69