MDL TREMEC GM TKX 5-Speed | 2.87 First, 0.68 OD | 2” Left Side Shift Front Shifter, 1” Left, .65” or 1.15” Backward Offset Stub

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, 0.68) 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” left, .65” or 1.15” backward offset stub - precise shifter placement without compromise
• Shifter Stub Location: 3” left of center line, 20-17” or 20.67” back from the bellhousing face
• MDL Exclusive - not available through TREMEC

Description

Factory TKX shifter positions don't always land where your console or floor configuration demands. This MDL-modified TREMEC TKX solves that problem with a front socket side shifter setup delivering precise 1" left offset and 0.65" or 1.15" backward shift stub positioning - a configuration not available through standard TREMEC distribution channels. When your build requires exact shifter placement for a custom console, factory restoration, or race application, this is the transmission that gets it right.

The TKX platform was engineered from the ground up for the aftermarket, with 600 lb-ft torque capacity and 8,000 RPM engine speed capability. The enhanced multi-cone synchronizers with hybrid carbon/bronze rings enable confident shifts at 7,500 RPM while eliminating the notchy, high-effort feel of older 4-speed designs. The close-ratio 2.87 first gear provides aggressive launches while the deep 0.68 overdrive drops cruising RPMs for highway comfort and fuel economy.

TREMEC's three-piece ribbed aluminum housing delivers structural stiffness while the end-loading case design creates a slimmer profile than side-loading transmissions - critical for clearing tight transmission tunnels without cutting sheetmetal. Durability comes from oversized gear widths, gaskets at all flanges, and caged needle bearings in every gear position. The 26-spline input shaft and 31-spline output shaft handle serious power while maintaining broad clutch and driveshaft compatibility.

This GM-pattern TKX bolts directly to any Muncie or Richmond 4-speed bellhousing, making it a straightforward upgrade from factory 4-speeds in Camaros, Chevelles, Novas, and other GM muscle. Dual speedometer outputs accommodate both mechanical cable-driven gauges and modern electronic speedos. Requires a 26-spline clutch disc and 31-spline slip yoke.

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” left, .65” or 1.15” backward 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