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  • 20299 B&M TRANSMISSION SPEEDOMETER PORT PLUG TH350 Powerglide Muncie M20
  • 20299 B&M TRANSMISSION SPEEDOMETER PORT PLUG TH350 Powerglide Muncie M20
  • 20299 B&M TRANSMISSION SPEEDOMETER PORT PLUG TH350 Powerglide Muncie M20
  • 20299 B&M TRANSMISSION SPEEDOMETER PORT PLUG TH350 Powerglide Muncie M20
  • 20299 B&M TRANSMISSION SPEEDOMETER PORT PLUG TH350 Powerglide Muncie M20

    • 20299 B&M TRANSMISSION SPEEDOMETER PORT PLUG TH350 Powerglide Muncie M20

    $29.67
    (No reviews yet) Write a Review
    SKU:
    20299
    UPC:
    90127107430
    Availability:
    3/4/2024
    Width:
    0.60 (in)
    Height:
    5.35 (in)
    Depth:
    7.70 (in)
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    Product Description

    20299 B&M TRANSMISSION SPEEDOMETER PORT PLUG TH350 Powerglide Muncie M20

    Fits GM TH350, TH350c, Powerglide, Muncie M-20 and Aisin AY6 B&M Racing & Performance brings you this billet aluminum speedometer port block-off plug that fits GM TH350, TH350c, Powerglide, Muncie M-20 and Aisin AY6 transmissions. This plug is used to block the mechanical speedometer gear port when upgrading to an electronic speedometer and includes a replaceable Buna-N-rubber o-ring. It features a black Mil-Spec anodized finish for long lasting good looks, even in harsh conditions. Comes with hardware and instructions for a quick and easy installation. Does NOT fit B.O.P (Buick, Oldsmobile & Pontiac) TH-350 Transmissions.

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