Richmond Gear developed its 2-Speed transmission after seeing a need for a quality piece that the Saturday-night racer could afford. The 2-Speed uses a Borg Warner Super T-10 aluminum case, reducing the dry weight of the item to a scant 62 pounds, 11 less than stock. The case is also a stock style, making it acceptable with sanctioning bodies whose rules require a stock OEM case. It is approved by IMCA, and Richmond Gear also recommends it for late model cars.
The final gear ratio is 1:1 and you have a choice of five different first gear ratios: 1.03, 1.12, 1.23, 1.34, or 1.46. These gears can be changed out for different tracks through a side cover and by removing the tailhousing. This is not a synchronized transmission. It has face-shifted or dog-type rings for shifting, giving you the ability to shift on the fly. By momentarily burping the throttle, you can shift to the next gear.
Straight CutMost OEM transmissions have helical teeth on the gears to help keep the transmission's gear noise at a minimum. While the helical gears are fine in an everyday vehicle, there is not too much need for noise reduction in a racing car. Richmond removes the helical gears and replaces them with straight cut gears. The straight cut gears may run a little nosier, but they are considerably stronger.