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    TREMEC TKX Conversion Package | 1987-1993 Mustang | LS Swap
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    TREMEC TKX Conversion Package | 1987-1993 Mustang | LS Swap

    Description ▼▲

    Key Features

    • 600 lb-ft torque capacity handles LS power with confidence
    • 26-spline input shaft with 31-spline output shaft for maximum drivetrain strength
    • Safe shifting to 7,500 RPM with multi-cone carbon/bronze hybrid synchronizers
    • Compact end-loaded case design fits Fox Body tunnels without floor modifications
    • Fully customizable package builder - select only the components your build requires
    • LS-specific bellhousing, crossmember, and hydraulic or cable clutch system options included
    • Multiple gear ratio configurations: wide-ratio (3.27 first) or close-ratio (2.87 first)
    • Three-piece ribbed aluminum housing provides structural stiffness and reduced NVH
    • Built-in reverse light switch and cruise control safety switch

    Description

    Swapping an LS V8 into your '87-'93 Mustang while upgrading from a worn T5 creates a unique set of challenges - you need a transmission that matches GM's bellhousing pattern, fits the Fox Body tunnel, and handles modern LS power levels. MDL's customizable TKX package solves every one of these problems with a complete, application-specific kit that eliminates the parts-bin guesswork from cross-platform builds.

    The TREMEC TKX delivers 600 lb-ft torque capacity and handles engine speeds up to 8,000 RPM with safe shifts at 7,500 RPM - more than enough for built LS combinations. TREMEC engineered this 5-speed from the ground up specifically for the aftermarket, featuring a compact end-loaded case that fits within narrow transmission tunnels like the Fox Body without floor modifications. The three-piece ribbed aluminum housing (main case, intermediate plate, and extension housing) provides outstanding structural stiffness while minimizing noise, vibration, and harshness. Multi-cone synchronizers with sintered bronze and carbon hybrid rings deliver smooth, precise shifts even at high RPM, a significant improvement over the brass synchros in older 5-speeds.

    Our guided package selection walks you through every component choice - from transmission gear ratios to clutch systems, crossmembers to driveline hardware. The 26-spline input shaft pairs with a 31-spline output shaft for maximum strength, and the integrated GM and Ford mounting patterns simplify installation. Each package includes the LS-specific bellhousing that bridges the gap between Chevy's V8 architecture and your Mustang chassis, plus all the supporting hardware to make this cross-platform swap successful.

    What's Included

    Components selected during package configuration based on your specific build requirements:

    • TREMEC TKX 5-speed transmission (wide or close-ratio configurations available)
    • LS-to-TKX aluminum bellhousing
    • Bellhousing clutch fork
    • TKX-specific hardware and fastener kit
    • Flywheel bolt set (multiple options)
    • Pressure plate bolt set
    • Clutch kit (multiple disc materials and torque ratings available)
    • Pilot bearing
    • Throwout bearing
    • Clutch cable kit with clips (if cable actuated)
    • Clutch pedal pads (quantity 2)
    • Shift knob (multiple styles available)
    • Shift boot
    • Speedometer gear or electronic sensor
    • Speedometer gear retaining clip
    • Transmission crossmember
    • Transmission mount
    • Reverse light wiring harness
    • TREMEC HP-MTF transmission fluid (3 quarts)
    • 31-spline slip yoke (1310, 1330, or 1350 U-joint sizes available)
    • Complete installation guidance
    • Lifetime MDL technical support
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    Final step

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