MDL TREMEC GM TKX Road Race 5-Speed | 2.87 First, 0.81 OD | 3” Left Side Shift Front, Straight Up or .5” Forward Offset

Key Features

• 600 lb-ft torque capacity with 7,500 RPM shift capability and 8,000 RPM engine speed rating
• Close-ratio gearing (2.87, 1.89, 1.28, 1.00, 0.81) balances strong launches with relaxed highway cruising
• 26-spline input shaft (1-1/8 in. diameter) and 31-spline output shaft for added strength
• Compact end-loaded aluminum case fits most GM tunnels without floor modifications
• Ribbed 3-piece housing (main case, intermediate plate, rear extension) for structural stiffness
• Multi-cone synchronizers with sintered carbon/bronze hybrid rings for smooth high-RPM shifts
• ASTM 4615 special-grade steel gears and shafts with caged needle bearings in all gear positions
• GM Muncie bellhousing bolt pattern - direct swap for 3-speed and 4-speed applications
• GM 0.590-inch pilot tip with 1.375-inch OD throwout bearing guide tube
• Built-in reverse light switch and cruise control safety switch
• Dual speedometer outputs: mechanical 7-tooth Ford gear (adaptable to GM) plus OSS two-wire analog sensor
• 99 lbs dry weight; 2.7-quart fluid capacity
• High-performance short-throw billet aluminum shifter included
• MDL side shift modification with straight up or .5” forward offset stub - precise shifter placement without compromise
• Shifter Stub Location: 3” left of center line, 16.25” or 16.75” back from the bellhousing face
• MDL Exclusive - not available through TREMEC

Description

Shifter placement kills more manual transmission swaps than any other single issue. Your shifter lever needs to come up exactly where your hand expects it - not 2 inches back, not 3 inches forward, not buried in your console. This MDL-exclusive TREMEC TKX Road Race solves that problem with a precision side shifter front socket configuration featuring a 1" left, straight up or .5" forward offset stub that positions your shifter exactly where it belongs in GM applications.

Built around TREMEC's close-ratio 2.87 first gear, this transmission delivers the tight gear spacing road racers and autocross drivers demand. The 600 lb-ft torque rating handles serious power, while multi-cone synchronizers with hybrid carbon/bronze rings deliver clean shifts at racing RPMs up to 8,000. The aggressive 0.68 overdrive provides meaningful RPM reduction for highway cruising between events while maintaining the close gear spacing that keeps you in the powerband through corners.

TREMEC engineered the TKX case specifically for tight tunnel clearances in classic muscle cars. The slimline three-piece ribbed aluminum housing and end-loading design eliminate the floor cutting that plagued older TKO installations. Caged needle bearings in all gear positions and oversized gear widths deliver the durability that hard track use demands. The robust 26-spline input (1-1/8in diameter) and 31-spline output shafts handle the shock loads of aggressive clutch dumps and hard corner exits.

This transmission accepts both mechanical cable and analog electric speedometer drives, uses Dexron III ATF, and bolts to any GM Muncie bellhousing pattern. The side shifter front socket configuration combined with MDL's precision offset stub eliminates binding issues and provides the repeatable shifts that separate fast lap times from DNFs. This configuration is an MDL exclusive - not available direct from TREMEC.

Kit Includes

• TREMEC TKX 5-speed transmission (TCET17722) with 2.87/1.89/1.28/1.00/0.81 gear ratios
• High-performance short-throw billet aluminum shifter (2" left side shift front, 1” Left, straight up or .5” forward offset)
• Gaskets for all mating surfaces
• Built-in reverse light switch (left side)
• Built-in cruise control safety switch (right side)
• Mechanical speedometer drive gear (7-tooth Ford pattern, adaptable to GM)
• OSS two-wire analog speedometer sensor
• MDL extended warranty: manufacturer warranty plus 1 additional year with 1-year grace period
• Lifetime technical support