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Hurst Tunnel Patch 1978-1988 GM G-Bodies

For Tremec Magnum 6-speed transmission conversions.

PART# 69510002

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$88.74   Suggested Retail
$71.88   Holleydays Price
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This laser-cut Hurst tunnel patch kit is designed for 1978-1988 GM G-Body applications when doing a Tremec Magnum 6-speed transmission conversion. The 2-piece tunnel patch is constructed from 18-gauge mild steel and comes with a pre-cut hole for the correct shifter stick location, along with pre-drilled holes that can be used for locating holes and/or welding to your existing floor pan. Includes a CAD drawn template with the correct layout for trimming the factory floor hump to properly accommodate the Tremec Magnum transmission.


  • Custom Designed Specifically for 1978-1988 GM G-Bodies
  • Includes Template for Trimming the Factory Floor
  • Over 60 Years of Conversion Experience
  • Constructed from 18-gauge Mild Steel
  • Simplifies Transmission Conversions
  • Includes CAD drawn Floor Template
  • Properly Locates Hole for Shifter
  • Laser-cut and Formed


Emission Code5
Item GradePremium Replacement
Large End Width (in)10.5
Length (in)23
Panel PositionTransmission Tunnel
Product TypeFloor Pan Patch Panel
Small End Width (in)7.5
California Proposition 65 Chemical NameChromium (hexavalent compounds)
California Proposition 65 RequiredYes
Part Number69510002



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

For Tremec Magnum 6-speed transmission conversions in 1978-1988 GM G-Body applications.


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       X  Holleydays 2020 20% off and DD
       X  Holleydays 2020 20% off and DD