MDL TREMEC GM TKX 5-Speed | 2.87 First, 0.68 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 (2.87, 1.89, 1.28, 1.00, 0.68) - deep 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 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

This MDL-modified TREMEC TKX solves the console alignment challenge that plagues most transmission swaps. The TKX's compact end-loaded design was engineered to fit classic muscle car tunnels without floor modifications, but factory shifter positioning rarely lines up with original consoles or aftermarket setups. MDL's precision-machined forward offset stub places the shift lever exactly 1.65" or 2.15" forward of stock -- positioning the shifter right where you need it for clean, professional installations.

The close-ratio gear set delivers a 2.87 first gear for strong launches while the 0.68 overdrive drops highway cruising RPMs significantly compared to direct drive. TREMEC's multi-cone synchronizers and hybrid synchronizer rings made of sintered bronze and carbon enable crisp, precise shifts even at 7,500 RPM -- a dramatic improvement over older five-speed designs. With 600 lb-ft of torque capacity and 8,000 RPM engine speed capability, this transmission handles serious horsepower from LS swaps, stroker small-blocks, and built big-blocks.

The three-piece aluminum housing -- main case, intermediate plate, and rear extension -- delivers outstanding structural stiffness while keeping weight at just 99 lbs dry. Gaskets at all flanges simplify installation and eliminate fluid leaks. All gears and shafts are manufactured from ASTM 4615 grade steel, with oversized gear widths and caged needle bearings in all positions for maximum durability. The internal three-rail shift system with steel shift forks provides a robust, reliable shift mechanism.

Uses the same GM Muncie bellhousing bolt pattern as your original 3-speed and 4-speed transmissions, making this a true bolt-in upgrade for Chevelles, GTOs, Cutlasses, Novas, Camaros, and similar chassis. Compatible with Dexron-III ATF, TREMEC HP-MTF, GM Synchromesh, or Mobil 1 Synthetic ATF. Fill capacity is 2.7 quarts.

Kit Includes

• TREMEC TKX 5-speed transmission (TCET17805) with 2.87/1.89/1.28/1.00/0.68 gear ratios
• High-performance short-throw billet aluminum shifter (2” left side shift front, 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