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White Box

White Box 8HP70 Transmission Adapter Plate

1970-1974 Dodge Challenger and Plymouth Barracuda 8HP70 Transmission Adapter for Gen III Hemi Swap

Part # WB130041

White Box 8HP70 Transmission Adapter Plate

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Emissions

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles.

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White Box transmission crossmember is part of the most comprehensive line of GEN-3 Hemi Swap components available for the Mopar E-Body. This WB130041 Crossmember adapter plate allows the installation of the popular 8HP70 8-speed automatic transmission when used with the WB130038 Crossmember. No cutting or drilling is necessary; just bolt it in the factory location using the supplied hardware. The modular design allows the use of several different transmission options without the need to buy or fabricate a different Crossmember - simply change to a different adapter plate and the driveline and u-joint alignment have been preset to the corresponding transmission. Use this transmission adapter with a the popular GM style transmission mount for its compact design that allows for better ground clearance than the OEM crossmember (Hooker part number 71223029HKR or 71223030HKR - sold separately). Solid 3/16" Steel construction and Raw unpainted finish provides great value.

Features:

  • Accommodates Popular 8HP70 Transmission - Use with WB130038 Transmission Crossmember
  • Uses the Factory Mounting Holes - for Easy Installation
  • High Tuck Design to Maximize Ground Clearance
  • Accommodates Up to 3” Exhaust
  • Uses GM Style Transmission Mount - Hooker Part# 71223029HKR or 71223030HKR (Sold Separately)
  • Modular Design with Bolt-on Transmission Adapter Allows Future Transmission Swaps w/o Replacing the Crossmember
  • Welded Steel Construction w/ Raw Unpainted Finish for Great Value
  • Heavy Duty 3/16” Steel Construction - for Strength & Durability
  • Includes Hardware & Instructions

About White Box

White Box offers budget-conscious solutions for engine swaps, exhaust systems, headers, fuel pumps, and even traction bars. Shop now at Holley.com!

Application1970-1974 Mopar E-Body
Brand White Box
Clearance CategoryEngine Swap Parts
ColorRaw
Discount Percentage5-25%
Emission Code3
6
FinishRaw
MaterialSteel
Motor TypeChrysler Gen III Hemi
Product TypeTransmission Mount
Transmission8HP70
Type of ComponentTransmission Mount
UPC090127120330
Part NumberWB130041
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This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles.


The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle


WARNING: It is against the law to install this part on an Emissions Controlled Vehicle


The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle
Instructions for Part# WB130041
Use with Engine Mounts WB130037 and Polyurethane Transmission Mount 71223029HKR (Black), or 71223030HKR (Red) Fits 8HP70 Transmission - Pinch Weld at Firewall Will Need to be Rolled Use with WB130038 Transmission Crossmember (sold separately) Use with Drivers Side Mounted Starter 8HP70 - to Avoid Clearance Issues with the Factory Steering System.

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*Free Shipping & Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

Some parts are not legal for use in California or other states with similar regulations.