TCI Torque Command 904 Transmission - Inside The Aftermarket 904
The big deal with an aftermarket trans built for street/strip heros is the clutch pack. TCI and pretty much everyone we spoke to uses the Alto four- or six-disc clutch pack. There are actually two separate packs in the 904, one for front clutch (High gear and Reverse) and the other for rear (all forward gears and breakaway Low). On an engineering level, more clutches provides a greater surface area, and better material is, well, better. View Related Article
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