slolt1

iTrader: (75)

just wanting to see what everyone is using with the 3 speed trans
my set up is
th-400,9 inch,vic jr,4000 stall,patriot heads,28 inch tire, and probly going with a large comp cam some where in the 230 to 240 range the one i am looking at is 2400 to 7000
i was thinking 4.10,4.30,4.56

EPP

iTrader: (22)

It is going to depend on how much horsepower you are making. Bob

sandu002

4:10 is plenty. If you are doing any cruising, probably would want a 3:73.

Jays00ss

iTrader: (1)

3.73 in my elcamino with a big block 402. Works really nicely with my th-400

Camaro396

iTrader: (14)

my big block car has 4.88s

1badA3Z

iTrader: (58)

With my 408,th400 and a 4400 ptc converter,i had 4.56 in my 12bolt,with a 28 tall tire!

NOZR1

iTrader: (5)

I have a similar set up that you listed. I have 3.90's with a 26" tall tire. 3000 rpms at 55 mph is not a lot of fun on the highway.

Jawsgear

iTrader: (2)

3.73 gears are tolerable on the street/highway. Not really a cross country combination though.

Jeff

Z28FirefighterI1

iTrader: (16)

It all depends on what size tire your going to be running. I'm running a 26" tire with 3:55 gears and it's streetable, still not good for long highway runs. It's all about what you want to do with the car. Is it a DD or just a weekend car? Street or track?

FAST FREDDY

4.10's and 26" tires here

MattIROC

iTrader: (19)

4.11's and 28 x 11.5 et street tire, not a daily. Shift at 6500, cross in 3rd at 6800. (This is with a th350 btw)

n2ocamaro

4.10s here. Not alot of street driving though. About 500 miles a year. What first gear do you have in the th400?

jmill96Z

iTrader: (3)

I have 3.90's with my TH350. It works out well with 28's on spray, and 26's on motor.

There are calculators out there. You really need to know your power, and the RPM that you want to go through the traps at. My guess is that 4.30's would be your optimal gear