[Formulajones]

I've had/have both 5 and 6 speeds. While I think they both have their benefits they also both have quirks I don't like but for what the owner of that car is looking to do Scott, the Tremec 5 speed will do everything he is looking for.

On our own personal vehicles I've run different Tremecs with .63 overdrive using 3.27 rear gears as well as 3.73's. The .64 version with 3.55's and several other swaps all with the 2.87/ .64 combo ranging from 3.50 to 4.10 gears.

He'll probably be really happy leaving the 3.23's and going this direction.

Generally with 3.73's and no overdrive, with a 27" tire I'm doing 60 at 2800. So he must have an extremely short tire to be turning that kind of rpm to do 60 with 3.23's.

[napster]

Again, late to the party. Look at this thread of the T-56 install in my "73.

https://forums.maxperformanceinc.com...d.php?t=839167

Not much to cut in post #15. Look at post #14 where a lot of surgery was done because the engine was an inch back from stock in a 1970 Formula.

I have the T-56 in my 1970 T/A. Same deal not much cutting. It was already cut for a four speed, but the T-56 was put in without any further cutting. Same amount of cutting as my '73 was previously was done as it was an auto to stick conversion.

I have another T-56 going into my 1970 GTO which was a factory four speed. I don't expect any cutting. Will update once it is in.