[burch]

Hi everyone,

I'm in the process of installing a Tremec TKO-600 transmission into my '69 Firebird. It's a 5-speed manual transmission, factory rated for 600ft/lbs of torque, and is basically an evolution of the Tremec 3550 line, which was itself an evolution of the Ford Toploader.

Externally the transmission is pretty small, and fits into the transmission tunnel without any modifications:









In the picture above you can see the hole for the automatic transmission cable. More on the floor pan modification later.

The new TKOs also have the provision for THREE different shifter locations. In the picture below the shifter is mounted in the '69 Firebird location:



Several different versions are available, and Tremec splits them into "GM" versions and "Ford" versions. All TKO600's have a 26-spline input shaft:



In addition, these transmissions have both mechanical and electronic speedometer outputs. Fortes Parts Connection (the place I bought my transmission) offers a GM speedometer adapter and will set it up with the correct speedo gears for your rear axle/tire combination.