Hi, the supra bellhousing and other clutch parts are from http://www.dellowconversions.com.au/ I will just leave it as is for the moment, as apparently in Oz we got a 3.63:1 with the 5 speed box. With the gearbox ratios, it looks pretty good to me. IE, my engine is meant to rev to 6500, so 1st 60kmh, 2nd 104kmh, 3rd 154kmh, 4th 197kmh, 5th 251km/h. My gearbox is pretty modern from a real supra, that is not an 80s one! Of course I would like an LSD, which I will get later on hopefully and a ratio similar to this would be good I suppose.