This plug is used to block the mechanical speedometer gear port when upgrading to an electronic speedometer and includes a replaceable Viton rubber o-ring. It features a black billet aluminium anodized finish for long lasting good looks, even in harsh conditions.

Suits most transmissions with .875" / 7/8" port

Fits These GM Automatic & Manual Transmissions

  • Muncie M20, M21, M22 4 speed
  • Muncie 3 speed
  • Saginaw 3 & 4 speeds
  • T-5 5 speed WC & NWC
  • T-4 4 speed
  • TH350
  • TH350C
  • TH250
  • TH350C
  • 200-4R
  • Powerglide

Supplied with unc & unf stainless button head fasteners

 

More From This Category

Sonnax Bearing Kit, GM, 4T60, Some 4T60-E, '84 - Up, Each

Sonnax Bearing Kit, GM, 4T60, Some 4T60-E, '84 - Up, Each

$89.89

Sonnax Bore Sizing Tool, 40Tes/41Tes/42Le/42Rle/RFE, Each

Sonnax Bore Sizing Tool, 40Tes/41Tes/42Le/42Rle/RFE, Each

$440.11

TCI System High Flow Filter GM TH350

TCI System High Flow Filter GM TH350

$192.97