454/dana 70...highway gears?

[chris989]

Originally Posted by Puglia10

just to put some closure in this thread, I ended up ordering a gear vendors overdrive. Not cheap, but the reviews are great and after pricing out a rebuilt 4l80e and controller, plus the extra amount of work, it wasn't a big difference. I'll try to remember to report back after I drive it. It makes my 4:10s act like 3.20 on the highway.

If possible,, reconsider the 4L80... the gear vendor is nice but it does not lock up the converter.

Having the converter lock is almost like getting another gear. I swapped a 4l80 behind my 5.7 with 4.56 gears. I run a MSD atomic controller.

It is an easy swap,,check you pick a part,,, pic one up for a few hundred with everything.

Good luck