sm 420 transmission

  • GM SM420 4-SPEED MANUAL TRANSMISSION FOR SALE
    Transmission

    GM SM420 4-SPEED MANUAL TRANSMISSION FOR SALE

    Product Overview & Specifications

    • In Stock, GM SM420 4-Speed Manual Transmissions Available
    • Free Shipping to All 50 States via Freight Pallet, 5 to 10 Business Days
    • Donor Truck Era Confirmed (1947-1967 production range)
    • All 4 Forward Gears and Reverse Tested
    • Granny Low (7.05:1) Engagement Verified Specifically (Non-Synchronized)
    • Bell Housing Pattern Confirmed (235/261 Inline-6 or early SBC)
    • Input Shaft Spline Count Verified
    • Output Shaft Pattern Documented
    • 4WD vs 2WD Configuration Confirmed
    • 100% Inspection Before Every Order Ships
    • No Core Charge, Keep Your Old Transmission
    • 15 Day Replacement Warranty on Internal Defects
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    $1,499.00 Add to cart