MDL TREMEC GM TKX Road Race 5-Speed | 2.87 First, 0.81 OD | 2” Left Side Shift Rear, 1.65” or 2.15” Backward 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 a 1.65” or 2.15” backward offset stub - precise shifter placement without compromise
• Shifter Stub Location: 2” left of center line, 21.17” or 21.67” back from the bellhousing face
• MDL Exclusive - not available through TREMEC

Description

This MDL exclusive TKX addresses the precise shifter positioning demands of performance builds where the standard rear position doesn't align with your vehicle's console or ergonomic requirements. The side shifter with rear socket configuration combines the benefits of TREMEC's latest 5-speed technology with MDL's custom offset engineering to deliver the shifter exactly where you need it - positioned laterally 2" left from the transmission centerline with the socket at the rear, plus 1.65" or 2.15" of additional rearward adjustment.

TREMEC engineered the TKX from the ground up as a purpose-built aftermarket transmission. The close-ratio gear set (2.87, 1.89, 1.28, 1.00, 0.81) delivers tight spacing for aggressive driving, while the multi-cone synchronizers with hybrid sintered bronze and carbon rings enable 7,500 RPM shifts without the notchy, balky feel of older designs. All gears and shafts are machined from special grade ASTM 4615 steel for maximum durability, and caged needle bearings in all gear positions reduce friction and NVH.

The slim-line, end-loading case design provides significantly better tunnel clearance than TKO transmissions - fitting GM A-bodies like Chevelle, Camaro, Nova, and GTO without floor modifications. The ribbed three-piece aluminum housing (main case, intermediate plate, and rear extension) delivers outstanding structural stiffness while gaskets at all flanges eliminate fluid leaks. The integrated high-performance short-throw billet aluminum shifter provides clean, crisp shifts with road noise isolation.

MDL's side shifter modification positions the shift lever laterally from the transmission centerline with the socket at the rear position. The 1.65" or 2.15" backward offset stub solves complex fitment challenges where both lateral and fore-aft positioning matter - perfect for factory console alignment or custom interior layouts. This configuration bolts directly to existing GM Muncie and Richmond bellhousings and shares TKO mounting points for straightforward retrofit. TREMEC recommends Dexron III ATF, GM Synchromesh, or TREMEC HP-MTF fluid.

What's Included

• 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 rear, 1.65” or 2.15” backward 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