spiru

Another question, what's the gearing on a stock 78? I thinking of putting in shorter gears to hopefully gain some low end grunt.

Thanks.

tnt76vette

If you have an accurate tach and speedo, go to smokemup.com, punch a few buttons and it will tell ya your rear end ratio......... :yesnod:

Nomad78SA

78 vettes came with 3:55 gears for the most part. Will check the numbers when I come home from work.
Neil in Tenn

GaryS

Use the following website to do a little work and you can tell what your ratio is: http://www.idavette.net/tech/ratioc.htm

Change any variable and you can see how it affects your car.
Gary

fauxrs

Spiru,

Gearing is dependant on transmission, and engine - however nomads statement is correct - 3.55:1 was a very common ratio for the 78 corvette
Transmission.

The l-48 had four different gear possibilities:

L-48 - M-20 4spd - 3.36.1 (not available in CA)
L-48 -MX-1 (th350) - 3.08:1 (3.55 in CA)
L-48 - MX-1 (low alt?) - 3.55:1

L-82 MX-1 - 3.55:1
L-82 - 4speeds - 3.70:1
L-82- optional economy gear - 3.36:1

if you want more information you can find it at the 25th anniversary Corvette REgistry at http://www.vettefinders.com/78registry/index.html

spiru

Thanks guys. But one more thing I think my pump seal is bad, so the transmission is going to have to come out, I think this a good time to rebuild it, is it even worth trying a different gear ratio? What would be the best course of action here as far as a performance standpoint? :cheers: :cheers: :cheers: