The Tremec Magnum is the state-of-the-art 6-speed manual transmission. They are original equipment in some of the world’s best Supercars such as the ZR1 Corvette and the ACR Viper — capable of handling 700 lb-ft. of torque, Tremec’s Magnums feature multiple shifter locations and both electronic and mechanical speedo pickups.

RSG converts these amazing transmissions into Tranzilla Muscle Car Magnums for today’s most popular muscle cars, pony cars, street machines, street rods and 4x4s. Features include:

While RSG is known for its Tranzilla Magnum 6-speeds, we are also a Tremec® Elite dealer for TKO and T-5, 5-speeds. The TKO 500 and TKO 600 have torque capacities of 500- and 600-ft. lbs. respectively (double the 300 ft. lbs. – rated T-5). Tremec’s TKO series has slightly smaller overall dimensions and is 36 pounds lighter at 99 pounds compared to T-56. It is fairly versatile with multiple shifter locations, a couple of gear ratio options and both electric and mechanical speedometer pickups.

Rockland Standard Gear thoroughly preps these units for silky-smooth, high rpm shifts with a thorough “blueprinting” that includes shimming, match-fitting components and installing their exclusive carbon fiber-lined synchro rings. No other TKO shifts like an RSG TKO!