Convert your 250-500hp Vintage Mustang from manual or automatic to our ProFit APT5. System includes a signature APT5, hand built by the same craftsmen who build the fastest t5 on Earth, along with all the accessories for a no-cut, bolt-in fit.

If you need the ultimate 5-Speed giant killer the TKO500/600 is your gear box.  Built to perform under extreme load, these transmissions are also available with standard aluminum bells or awesome lightweight Scattershields for safe street and strip Mopar mashing.

Complete ProFit 6 SPEED KIT:  If five gears are just not enough, choose the Tremec T56, the most widely used high performance 6-Speed in the industry.  Choose from 425hp to 1000hp models for every street and strip application.  Perfect for upgrading your automatic car to a 6 speed double overdrive transmission.