4L60E automatic transmission 2,300 RPM stall converter 12-bolt Positraction differential 3.73:1 gear ratio (2.61:1 top / 0.70:1 final) Subframe upgrades by Detroit Speed Coilover shock absorbers Tubular control arms Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Like Loading...