MDL TREMEC GM TKX 5-Speed | 3.27 First, 0.72 OD | 2” Left Side Shift Rear, 1.65” or 2.15” Forward Offset

Key Features

• 600 lb-ft torque capacity with 7,500 RPM shift capability and 8,000 RPM engine speed rating
• Gearing ratio (3.27, 1.98, 1.34, ,1.00, 0.72) - overdrive drops highway RPM for improved 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 rear modification with a 1.65” or 2.15” forward offset stub - precise shifter placement without compromise
• Shifter Stub Location: 2” left of center line, 17.37” or 17.87” back from the bellhousing face
• MDL Exclusive - not available through TREMEC

Description

When standard shifter positioning won't work for your GM build, this TREMEC TKX configuration delivers the solution. The side-shift rear socket positioning with a 1.65" or 2.15" forward offset provides precise shifter placement for custom installations, bench seat setups, or floor pan geometries that demand non-standard locations. This is the same bulletproof TKX platform - just configured for builders who need the lever exactly where they need it.

The TKX was designed from the ground up specifically for the aftermarket, not adapted from an OEM application. The compact, end-loaded architecture provides exceptional tunnel clearance - fitting GM A-bodies like Chevelle, GTO, Cutlass, Nova, and Camaro without floor modifications. That slim profile comes without sacrificing strength: the ribbed 3-piece aluminum housing (main case, intermediate plate, and rear extension) delivers outstanding structural stiffness while gaskets at all flanges eliminate leak points and simplify installation.

Inside, TREMEC engineers specified ASTM 4615 special-grade steel for all gears and shafts, with wide gear widths and caged needle bearings in all gear positions to maximize durability. Multi-cone synchronizers paired with hybrid rings made of sintered bronze and carbon deliver smooth, precise shifts even at 7,500 RPM. The high-performance short-throw billet aluminum shifter isolates road noise while providing clean, crisp engagement through the internal three-rail shift system with steel shift forks.

The 3.27 first gear ratio provides strong acceleration off the line, while the 0.72 overdrive fifth gear drops cruising RPMs for improved fuel economy and reduced engine wear on the highway. With 600 lb-ft of continuous torque capacity, this TKX handles serious horsepower from small-block, big-block, and LS-swapped applications. Bolts directly to any bellhousing built for the GM Muncie/Richmond pattern.

Kit Includes

• TREMEC TKX 5-speed transmission (TCET17805) with 3.27, 1.98, 1.34, 1.00, 0.72 gear ratios
• High-performance short-throw billet aluminum shifter (2” left side shift rear, 1.65” or 2.15” forward offset stub)
• 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