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B&M Transkit For GM 1987-1993 TH700R4/4L60 Transmissions

GM 1987-1993 TH700R4 transmissions.

PART# 70233

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The B&M® Transkit™ includes all the same quality components we use in our legendary B&M Street/Strip automatic transmissions, giving you the parts you need to rebuild your 1987-1993 GM 700R4/4L60 transmission, including the following friction materials, forward/direct clutches and steels, intermediate band, seals, gaskets and more. The kit also includes our B&M Transpak™, giving you two choices for re-calibrating your transmission while still retaining full automatic function (1. Heavy Duty, 2. Hi-performance Street/Strip) B&M is a name you can trust, and the brand that's been leading the high performance automatic transmission market since 1953. Note: Does Not fit GM 4L60E (electronic) transmissions.


  • Two Performance Options for Re-calibrating your Transmission
  • High Performance Friction Materials
  • Complete Overhaul Gasket Set
  • Over 65 Years of B&M Quality
  • Includes a B&M Transpak Kit
  • Modification Components
  • Replacement Valves


Emission Code5
Gasket IncludedYes
Instructions IncludedYes
Manual ControlPartial
Product TypeAutomatic Transmission Master Repair Kit
California Proposition 65 Chemical NameCadmium and cadmium compounds
California Proposition 65 RequiredYes
Part Number70233



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

Fits 1987-1993 GM TH700R4 4L60 automatic transmissions. Compatible with GM Buick, Chevrolet, GMC, Oldsmobile and Pontiac transmissions. Does not fit GM 4L60E (electronic) transmissions.


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