RTS Speedo Port Plug, GM TH350, Powerglide, Muncie, Saginaw, Billet, .875"od, Each

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