Nasty_Bird_'90

i was just wondering how much my mileage would drop if i went from 2.73's to 3.73's with a 700R-4

Der91Z

iTrader: (1)

I'd say atleast 2 mpg because on automatics it may not shift into 4th gear because the accelerator will be depressed too much. You have to get that B&M kick down kit. It allows the transmission to shift into OD when the accelerator is pressed down no more than 3/4 instead of the stock 1/2.

ADMZ24

iTrader: (1)

So with the kick down kit, will there still be a drop in fuel mileage??? I also have 2.73's and have been looking for a new setup.. How about 3.23's????

Der91Z

iTrader: (1)

yes there will be a mileage drop because the engine will be turning more rpms.

tpi_roc

I get 20mpg on the freeway with 3.73's at about 65-75mph