Plugs the mechanical speedometer port opening on Tremec TKO, T56 Magnum, Borg Warner/Tremec T5, T45, T56, 3550 and Keisler SS700 transmissions. 

Speedo Port Plug

If you're not using a mechanical speedo cable, you need to plug up the port with a plug.  Our Speedo Port Plug is made from billet aluminum and comes with an o ring installed to prevent fluid leaks.  We also include a lock nut and a bolt to lock down the plug.