SS/GT classes transmission?

[Jim Caughlin]

Originally Posted by SSDiv6

Mark is correct.
The transmission had to be available with the engine combination.

Other examples are the Ford Boss 302 and Boss 351; they were manual trans only.

Also, number of gears has to match, 5 speeds only if combo originally came that way.

[Bob Gullett]

Originally Posted by Jim Caughlin

Also, number of gears has to match, 5 speeds only if combo originally came that way.

If it came with a 3 speed you are allowed to run a 4 speed.

[Jim Caughlin]

Originally Posted by Bob Gullett

If it came with a 3 speed you are allowed to run a 4 speed.

I guess I should have clarified that, but no 5 speed in an original 4 speed combo. Also, you can run a 4 speed in an orig 5 speed combo if you wish.

[Dave Noll]

Originally Posted by Jim Caughlin

, but no 5 speed in an original 4 speed combo.

Uhm, is that the regular SS classes as well?

[Ernie Neal]

Originally Posted by Dave Noll

Uhm, is that the regular SS classes as well?

Yes

Ernie Neal
SS 354

[Mark Yacavone]

Originally Posted by Bob Gullett

If it came with a 3 speed you are allowed to run a 4 speed.

Yes...

[mannymen]

Thank you for the quick responses.

[KRatcliff]

Originally Posted by mannymen

Thank you for the quick responses.

You can count on this group in a clutch.

[Hacksaw]

The way I read the rule book it says, " any model transmission, same make as car, with a maximum of three forward speeds". To me this means you could have or a 283" Chevy in a 98 Camaro SS /GT with a 200 metric or turbo or .....

[FireSale]

I'm not sure about this. In GT weight is linked to the transmission you want to run but I'm not sure a factory match is required in the finished car.



The rules state weight is determined using the heaviest weight gas engine with appropriate transmission available. So to find the shipping weight of a car for stick or auto application, find that car's heaviest weight in either stick or auto for the weight factor.
There is no transmission section in the GT section, just shield requirements. That means you look back to SS which reads any model trans same make as body with forward gear limits. Nowhere does it state stick must be stick or auto must be auto for any flavor of SS. Adapter plates are allowed. You can bolt up a trans that's not designed for your bellhousing.


If you are allowed to drop a motor from a '60s station wagon into the "trunk" of a Cobalt, why can't you bolt an auto to a stick only engine like a '70 BOSS 302 Mustang? In one, you rebuild the entire car. In the second you change the trans/bellhousing.