TCI Speedometer Driven Gear GM 38 Tooth Blue 29063BK The intake bolt pattern utilizes

The intake bolt pattern utilizes the 1986-91 (straight) 90 ° angle on all bolts

Gaskets / Seals

These can be run shaft up or shaft down and a snap ring groove has also been added to allow the use of a coil-over kit

Pre-programmed channels

Most of our systems include a custom designed X-Pipe at a considerably lower price than others that include no crossover at all or just a basic balance tube with their systems

TCI Speedometer Driven Gear GM 38 Tooth Blue 29063BK The intake bolt pattern utilizesGM 200C 375B TH425 475 700R4 38 Tooth Speedo Drive Gear.. 38 Tooth GM Speedo Drive Gear. Speedometer gears include both the drive gear and the driven gear. The drive gear refers to the gear that is on a transmissions output shaft. The driven gear is located in a removable housing, usually in the tailhousing, of transmissions. Be aware that some transmissions will have different driven gear housings depending on the tooth count of the driven gear. TCI