Manual Swap
After taking my 04 C5 auto to a tuning shop recently, (and after learning that the person who locked the tune into the ECM passed away, and I'll need to buy a new unit), I've been weighing the Cricle D 3,200 245mm stall converter recommended (due to cam specs, heads, etc.,), and switching from the 2:73 gearing to 3:15 (G92 unit), as recommended. But after driving the car, the owner of the shop said, "Shame it's not a manual." He agreed to tune the car after all of the transmission and rear end work is done, but to do it right (as to avoid problems later), that's the converter, shifter cable/bushings, servo, shift kit, trans cooler, etc., Adds up in $ to be done right the first time. With that, I received a call this morning from my neighbor who's a retired mechanical engineer. He owns an auto C5, and said, it were mine, I'd do a manual swap. He also said that the floorboards of the C5's are identical, so the provisions for the clutch master cylinder and pedal assembly are already indented in the firewall, so we shouldn't have any issues with mounting those factory manual components. With that, what recommendations would you suggest? I'm planning on:
- T56 6-Speed Transmission (with reverse lockout solenoid)
- 3-Rib Differential (3.42 gear ratio)
- Manual-specific Torque Tube
- Complete Clutch Pedal Assembly
- Clutch Master and Slave Cylinders
- Clutch Kit (Flywheel, Pressure Plate, and Pilot and throw-out Bearing)
- Manual Transmission Wiring Harness
- Complete Shifter Assembly (including interior boot and trim)
- New ECU (PCM)
Does this sound like a viable option, as from what I've been researching, it's not a huge bump up in cost to do this vs. what I was planning to have done with the automatic transmission setup? Thanks in advance!










