to the forums, Vtrbandit
I have the 8L90 8-speed auto, but based on the 2018 service manual and Tremec's website, the Camaro uses 1 variant of the TR-3160 and 3 different variants of the TR-6060, with different torque limits and gear ratios.
The option codes for these variants are M13, MM6, MJK and MH3 for the LTG/LGX, LT1, LT4 (ZL1) and LT4 (ZL1 1LE), respectively. Their parameters are as follows:
Code:
Product RPO Max Torque Forward Gear Ratios
TR-3160 M13 295 lb-ft 4.40 2.59 1.80 1.34 1.00 0.75
TR-6060 MM6 500 lb-ft 2.66 1.78 1.30 1.00 0.74 0.50
TR-6060 MJK 650 lb-ft 2.29 1.61 1.21 1.00 0.82 0.54
TR-6060 MH3 650 lb-ft 2.29 1.61 1.21 1.00 0.82 0.68
Interestingly, the M13 variant does not have skip shift, at least according to the service manual
