SpeedFactory Racing Modified Shift Change Holder Assembly for B-Series (New Unit) New Products In addition to these modifications

In addition to these modifications

This gives the shifter a more positive feel

Please see our simple installation diagram in the product images section

All SpeedFactory thermostat housings have provisions for the OEM cooling fan switch and engine harness ground wire

especially with an aftermarket header/turbo system

SpeedFactory Racing Modified Shift Change Holder Assembly for B-Series (New Unit) New Products In addition to these modificationsSpeedFactory (SF) Modified Shift Change Holder Assembly for B series hydraulic transmissions! 1st off, what is the SCHA, and what does it do? The SCHA is located inside the transmission housing, and is the internal mechanism that actually moves the shift forks into position, engaging each gear as it is selected. Why do you need this? Because you can't finish a race with a broken gearset or the inability to get it into gear due to a damaged SCHA.