[65Tempest]

Hello. I have a quick question. Im not to sure what the M12 and M6 means with the GTO.:confused Is it a package or sometihng else? Can some 1 clear it up for me?
Thanks -Bill

 

[pbmaniac2000]

Its a4 and m6. They refer to our trannies. m6 is a six speed manual, and a4 is a four speed automatic.

 

[65Tempest]

oo.. thats what i thought it was at first.. but then i thought it was a package. but thanks for clearing it up. thank you

 

[Holden]

M12 is option # for 6sp so some say M12 some say M6 same thing

 

[707GTOLS2]

M12 is the code for the tranny
I was confused as hell at first too
I thought It would have said T-56

 

[C5ORGTO]

The 97-2004 (Manual) Corvette came with the M-6 six speed manual transmission. The 2001-2004 Corvette Z06, came with the M-12 6 speed manual transmission. The Z06, and Gto came with the m12 transmission that had a lower gear ratio, but also a lower top end speed.

 

[Subdriver]

The 97-2004 (Manual) Corvette came with the M-6 six speed manual transmission. The 2001-2004 Corvette Z06, came with the M-12 6 speed manual transmission. The Z06, and Gto came with the m12 transmission that had a lower gear ratio, but also a lower top end speed.

:agree

Commonly misunderstood designation.

Gear ratios of 01-04 Corvette Z06 gear ratios with the M12:
1st Gear 2.97
2nd Gear 2.07
3rd Gear 1.43
4th Gear 1.00
5th Gear 0.84
6th Gear 0.56
Reverse 3.28
Final drive 3.42

Gear ratios of 97-04 Corvette C5 Coupe with M6:
1st Gear 2.66
2nd Gear 1.78
3rd Gear 1.30
4th Gear 1.00
5th Gear 0.74
6th Gear 0.50
Reverse 2.90
Final drive 3.42

:cheers

 

[LS2C6]

I always wondered about that M12 code...thanks guys