C7 Corvette Z06 and Base, Motive Gear 3.90 Ratio, Performance Ring and Pinion Kit

The 3.90 ratio ring and pinion will increase rear wheel torque multiplication by 14% over original 3.42 ratio with a manual transmission, 61% over original 2.41 ratio with an automatic 8L90 transmission, 52% over original 2.56 ratio with an automatic 6L80 transmission, or 42% over the original 2.73 ratio with a Z51 performance package.

The 4.10 ratio ring and pinion will increase rear wheel torque multiplication by 20% over original 3.42 ratio with a manual transmission, 70% over original 2.41 ratio with an automatic 8L90 transmission, 60% over original 2.56 ratio with an automatic 6L80 transmission, or 50% over the original 2.73 ratio with a Z51 performance package.

STOCK RATIO: 2.41
MGP 3.90 RATIO: 61% 
MGP 4.10 RATIO: 70%
APPLICATION: AUTOMATIC 8L90

STOCK RATIO: 2.56
MGP 3.90 RATIO: 52% 
MGP 4.10 RATIO: 60%
APPLICATION: AUTOMATIC 6L80

STOCK RATIO: 2.73
MGP 3.90 RATIO: 42% 
MGP 4.10 RATIO: 50%
APPLICATION: AUTOMATIC 6L80 OR 8L90L W/ Z51 PACKAGE

STOCK RATIO: 3.42
MGP 3.90 RATIO: 14% 
MGP 4.10 RATIO: 20%
APPLICATION: MANUAL T56, TR6060, TR6070

• 2006-2007 C6 Corvette Z06 used a 3.42 original ratio with a 6 speed manual T56 transmission.
• 2008-2013 C6 Corvette Z06 used a 3.42 original ratio with a 6 speed manual TR6060 transmission.
• 2014 C7 Covette used a 2.56 or 2.73(Z51) original ratio with a 6 speed 6L80 automatic or a 3.42 original ratio with a 7 speed manual TR6070.
• 2015-Present C7 Corvette used a 2.41 or 2.73(Z51) original ratio with a 8 speed 8L90 automatic or a 3.42 original ratio with a 7 speed manual TR6070.