I have a 67 Camaro with a 4 speed ZF gearbox which was in the car when I bought it, and a GM Performance ZZ4 engine which puts out about 355HP. I purchased the engine new, but left the old gearbox in. The old gearbox seems to be on its last legs, so I am thinking about putting in a 5 speed.
Does anyone have experience in having installed a 5 speed into a 1st gen Camaro ?
Which gearbox on the market would you recommend ?
Besides the gearbox itself, which other accessories (shifter, etc) would I need to purchase ?


Thanks
Jeff

 

I put a Tremec TKO in my last 67 behind a small block 406. Very easy install. From what I remember, the only extra part I needed was a different cross-member and a different drive shaft yolk... Great tranny...

 

I have a 67 Firebird with a TKO from Keisler. My car was a factory 3-speed on the floor, and with their modified shifter, I still had to trim about a quarter inch of metal at the rear edge of the hole. Apparently, some 1967 Camaros & Firebirds have the shifter located about 1-1/2" further forward than 1968-69 cars. Otherwise, the transmission is a perfect fit in the tunnel, and Keisler supplied a new crossmember and driveshaft with slip yoke. The TKO is longer than the old 3-and 4-speeds, so a factory driveshaft will be too long.

Also, all GM TKOs have a 26-spline input shaft, so if your old trans was a 10-spline, you will have to replace the clutch disc.