by Damo » January 3rd, 2008, 7:30 pm
You will need Transmission, TCM ( Trans Control Module) as the 4 speeds are an electronic box ( 3 speed are mechanical with a kickdown cable) ECU, Looms, Gear selector panel, custom cross member mount I think that's most of it. It's a lot of effort for not much gain.
Also to make the most of it you will probably need to replace the differential for one with shorter gears as yours probably has a 2.77:1 ratio.