MENU

Transmission Mount Adapter Kit

1967-81 F-BODY/ 1968-74 X-BODY/ 1978-88 A/G-BODY LS ENGINE SWAP TRANSMISSION MOUNT ADAPTER KIT TO GM TH400/200R4 AUTOMATIC TRANSMISSION

PART# 12650HKR

$53.00   Suggested Retail
$42.93   Holleydays Price
Free Shipping on orders over $100*
In Stock  
Qty: 
If you are using this adapter kit to install a 200R4 into a 1st-gen F-body or 3rd-gen X-body using the Hooker 12626HKR T56 crossmember, modify/cut the inside left upright wall of the crossmember to match what is shown in Figures 4 and 5 below. Once modifications are complete, clean parts and weld them together using either a MIG or TIG welder, as indicated in Figure 6 below and spot-paint as desired to match. Install the crossmember per the instructions contained in its packaging while installing the spacer block included in this kit between the crossmember and transmission isolator; use the included long fasteners to attach the transmission mount to the crossmember. If you using this adapter kit and the Hooker 12626HKR T56 crossmember to install a TH400 into a 1st-gen F-body or 3rd-gen X-body, or are using this adapter kit and the Hooker 12616HKR T56 crossmember to install a 2004R or TH400 transmission into a 2nd-gen F-body, do not modify the crossmember in any way. Install the crossmember per the instructions contained in its packaging while installing the spacer block included in this kit between the crossmember and transmission isolator; use the included long fasteners to attach the transmission mount to the crossmember. Any questions? Please contact Technical Service: 1-866-464-6553 or 270-781-9741. For online help, please refer to: www.holley.com

Overview

This Hooker LS Swap transmission mount adapter kit is part of the most comprehensively engineered system of mounting components, headers and exhaust systems available for this application. The entire Hooker swap system is designed to decrease your total swap installation effort and cost while increasing the engineered quality of your vehicle and compatibility of this component with other popular aftermarket components.

Features:

  • Designed using CAD modeling/FEA analysis for optimal fitment, strength, weight, safety and appearance
  • Designed as part of a fully-engineered LS swap mounting system
  • Designed in conjunction with Hooker 1st/2nd-gen F-body & X-body LS engine swap brackets to provide bolt-in installation of Hooker LS swap manifolds, headers and exhaust systems for this application
  • Facilitates installation of a GM TH400/200R4 automatic transmission behind an LS engine in any year 67/81 F-body & 68/74 X-body
  • Provides additional clearance to accomodate up to 3" diameter exhaust system
  • Requires use of an aftermarket Prothane 7-1604 polyurethane mount or one of equivalent installed height
  • Includes attaching hardware

Specs

Application67-81 F-Body/ 68-74 X-Body/ 1978-88 A/G-Body
BrandHooker
Motor TypeGM LS
Product TypeCrossmembers
Part Number12650HKR

Tech Resources

If you are using this adapter kit to install a 200R4 into a 1st-gen F-body or 3rd-gen X-body using the Hooker 12626HKR T56 crossmember, modify/cut the inside left upright wall of the crossmember to match what is shown in Figures 4 and 5 below. Once modifications are complete, clean parts and weld them together using either a MIG or TIG welder, as indicated in Figure 6 below and spot-paint as desired to match. Install the crossmember per the instructions contained in its packaging while installing the spacer block included in this kit between the crossmember and transmission isolator; use the included long fasteners to attach the transmission mount to the crossmember. If you using this adapter kit and the Hooker 12626HKR T56 crossmember to install a TH400 into a 1st-gen F-body or 3rd-gen X-body, or are using this adapter kit and the Hooker 12616HKR T56 crossmember to install a 2004R or TH400 transmission into a 2nd-gen F-body, do not modify the crossmember in any way. Install the crossmember per the instructions contained in its packaging while installing the spacer block included in this kit between the crossmember and transmission isolator; use the included long fasteners to attach the transmission mount to the crossmember. Any questions? Please contact Technical Service: 1-866-464-6553 or 270-781-9741. For online help, please refer to: www.holley.com
We Suggest
    Also Bought

      *Free Shipping & Handling only offered to the contiguous US on orders over $100.

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

       X  Holleydays