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Mythic · 04-05-2008, 09:49 PM

http://media.gm.com/us/powertrain/en...2008/08car.htm
not 100% certainty but a good guide for 09

The L79 doesn't list any manual transmission.

The LS3 and LS7 list the Tremec TR6060
the MM6 is rated for 500lb-ft
the 6L85M (MZ6) is also a TR6060 box but is rated for 428lb-ft
The sixth-generation Corvette with the Z51 option uses the MZ6 version of the six-speed, with ratios developed for the M12 which was used in the Cadillac CTS-V. These ratios are higher in first, second, and third gears than the MM6, as well as a lower-ratio fifth gear to increase top speed for the Z51 option.

The TR6060 is the direct replacement for the T56.

As far as feel goes... I would probably expect more of the same.

04-05-2008, 09:49 PM	#2
Mythic Drives: '03 Monte Carlo SS Join Date: Mar 2008 Location: VaBeach VA Posts: 348	http://media.gm.com/us/powertrain/en...2008/08car.htm not 100% certainty but a good guide for 09 The L79 doesn't list any manual transmission. The LS3 and LS7 list the Tremec TR6060 the MM6 is rated for 500lb-ft the 6L85M (MZ6) is also a TR6060 box but is rated for 428lb-ft The sixth-generation Corvette with the Z51 option uses the MZ6 version of the six-speed, with ratios developed for the M12 which was used in the Cadillac CTS-V. These ratios are higher in first, second, and third gears than the MM6, as well as a lower-ratio fifth gear to increase top speed for the Z51 option. The TR6060 is the direct replacement for the T56. As far as feel goes... I would probably expect more of the same.