MEM 302 5.0L

ok so im changin my rear gears from the stock 2:73's to 4:10's....what do u think it would do for my qt mile et's??....i have a few other mods...(exhaust, & cold air intake) ...

luckythirteen13

.2-.5 seconds depending on traction.

gizim_1132

you might run a 14.4 to a 14.7 depends on what you got and how good of a driver you are.
I just ran a 14.7 this weekend and saw a newer mach one run a 14.6 because he didn't know how to drive so see what I mean.

I G Joe

fastest my car has gone is 14.9 on its 3.73's still with no traction and over 200k miles. for 20 years old i guess thats pretty good. someone just hit my car not too long ago and all these problems have shown up. like now its not firing right on 1 cylinder and it SUCKS. time for a rebuild =/ anyone wanna donate?

MEM 302 5.0L

my cars only got 130k miles on it..and its got 11.5 inch wide back tires....doesnt miss out or nething....so idk

ckyguy68

they dont look like 11.5s

PX429

they look like 7's maybe 8's

OnyxCobra

I went from 3.08 to 3.55s and picked up some noticable time. i went from 14.2 with the 3.08s (decent launch) to bogging with the 3.55s (and DRs) and ran 14.0. Then i just dumped the clutch at 4k rpm and ran 13.8, with a better launch and new clutch i think a few more tenths are within reach. And that is nothing compared to the jump you're gonna get...

MEM 302 5.0L

i only got 11.5's in the rear ....the front are 8.5's i think....

PJB

Im doing the same thing to my car real soon. Im just waiting on the parts.
My car ran a 15.5 with the stock gears and some modifications. It doesnt move off the line with stock gears.