Sure-Shift Automatics
are the performance
transmission specialists.

Improve your vehicle’s performance (& race times) with faster, smoother shifts through Sure-Shift modifications.

We specialise in 6L80/90e transmission upgrades; the result is faster, firmer shifts & increased durability. We also offer performance 6L80/90e transmission TCM & ECU programming.

Our rebuilt, modified 4L60e & 4L65e transmissions are extremely durable & handle up to 500HP.

We also specialise in rebuilt & fully modified 4L80e, TH400, TH350, TH700, Powerglide, Trimatic, C-4, C-6 & ZF 6-Speed transmissions for street or strip.

We build transmissions to suit your aspirated, blown or turbo-charged vehicle.

We supply all race components, shifters, shift-kits, manual valve bodies, servos & hi-performance parts.

We supply & fit hi-stall torque converters to suit your application.