B&M Shift Improver Kit - GM 4L60E Transmissions 2006 saturn sky Each set comes with twelve

Each set comes with twelve Hex Head

Mark IV 396-402-427-454-555

3/8" laser cut flanges

1/2" drive impact socket with retractable 1/4" steel bit

B&M Shift Improver Kit - GM 4L60E Transmissions 2006 saturn sky Each set comes with twelveThe B&M Shift Improver kits feature two options to recalibrating your 1982 1993 GM TH700R4 4L60 automatic transmissions. First is the HEAVY DUTY set up, giving you firm positive shifts without loss of driver comfort for improved performance in all street vehicles. This is a great option for performance street driving or towing. The second is our STREET STRIP set up. Be warned, this will deliver firm positive shifts you will feel, along with easily