Black CTS-V: Gear Ratio Calculator

Black CTS-V: Gear Ratio Calculator

Here is a cgi I wrote to do gear ratio calculations. You can use it to try out different rear end gears and tire sizes. Note that there are two ways of entering the tire size. Be sure to check the radio box next to the method you want to use.

This table shows the specs for my 2014 CTS-V which has the Tremec TR-6060 six speed manual transmission (RPO MN6) and 3.73 gears (RPO GT4):

Gear	Final	MPH @ RPM	KPH @ RPM	RPM @ MPH	RPM @ KPH
1	9.92	47.7	76.7	6923	11142
2	6.64	71.2	114.6	4633	7456
3	4.85	97.5	157.0	3383	5445
4	3.73	126.8	204.1	2603	4189
5	2.98	158.5	255.1	2082	3351
6	2.35	201.3	323.9	1640	2639
R	10.82	43.7	70.4	7548	12147

Axle ratio
Tire diameter inches Tire diameter mm
Tire circumference inches Tire circumference mm
Revolutions per mile Revolutions per kilometer
Tire size /- (mm/profile-inch)

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Here are tables for some other configurations:

2024 CT5-V Blackwing with MJK TR6060 manual and GT4 3.73 gears (standard)
2024 CT5-V Blackwing with MHX automatic and HRD 2.85 gears (standard)
2013 CTS-V with 6L90 and 3.23 gears (standard)
2009 C6 Corvette ZR1 with MM6 TR6060 manual and GU6 3.42 gears (standard)
2008 C6 Corvette with MM6 TR6060 manual and GU6 3.42 gears (standard)
2008 C6 Corvette with MZ6 TR6060 manual and GU6 3.42 gears (optional)
2007 C6 Corvette Z06 with MM6 T56 manual and GU6 3.42 gears
2006 C6 Corvette with MYC automatic and GM8 2.56 gears (optional)
2005 C6 Corvette with MM6 T56 manual and GU6 3.42 gears (standard)
2005 C6 Corvette (Z51) with MZ6 T56 manual and GU6 3.42 gears (optional)
2005 C6 Corvette with MX0 4L65-E automatic and GU2 2.73 gears (optional)
2005 C6 Corvette with MX0 4L65-E automatic and G90 3.15 gears (optional)
2001 C5 Corvette with M30 automatic and GU2 2.73 gears (standard)
2001 C5 Corvette with M30 automatic and G92 3.15 gears (optional)
2001 C5 Corvette with MM6 manual and GU6 3.42 gears (standard)
2001 C5 Corvette Z06 with M12 manual and GU6 3.42 gears (standard)
2000 F-Body with MM6 manual and 4.10 gears
2000 F-Body with MM6 manual and 3.73 gears
2000 F-Body with MM6 manual and GU6 3.42 gears (standard)
2000 F-Body with M30 automatic and GU5 3.23 gears (optional)
2000 F-Body with M30 automatic and GU2 2.73 gears (standard)
1993 F-Body with T56 manual and GU2 2.73 gears (standard)
1993 F-Body with G92 T56 manual and GU5 3.23 gears (optional)