RPM LEVEL IV automatic transmissions are recommended for cars up to 500 RWHP. After that, we recommend our LEVEL V.

All RPM LEVEL IV automatic transmissions include:

Media blast transmission case
RPM sleeved input drum
RPM 3-4 clutch pack
RPM reinforced sunshell with collar and bearing
Heavy Duty double caged 29 element sprag
4L65E low roller clutch
Billet 4th gear servo
Transgo HD-2 shift kit
Corvette Servo
Wide 2-4 band
Updated aluminum accumulator piston
Bushing kit
new shift solenoids
new wiring harness
new GM valve body spacer plate
Seal & gasket kit
Filter
Set clutch and band clearances to our specifications