This harness/pigtail is to be used when wiring an electronic speedometer to your GM TKX/TKO transmission. Factory style for GM TKX/TKO 500/600 transmissions.
TREMEC TKX 5-Speed Manual Transmission for GM Vehicles - 26 Input Spline
TREMEC TKX 5-Speed Manual Transmission for Ford - 10-Spline Input
TREMEC TKX 5-Speed Manual Transmission for GM with 26-Spline Input
TREMEC TKX 5-Speed Manual Transmission for GM Vehicles, 26-Spline Input
Ford 6.03" Slip Yoke 31 spline with 1330 series for C6, T45 and Tremec Trans
TR3650 Bronze Shift Fork Pad Set Fitting Tremec TR3650 1-R