Re: FF or 4K into my 92 GTI 8v what plus and minus (96JettaTrek)
FF is REALLY freaking tall. Both 4th and 5th are overdrive gears I think. Are you aiming for supreme fuel economy? It'd totally change the way the car accelerates. If you had a turbo maybe...
Is the 4K totally as-is, or do you get a month to exchange it if it's dead or anything? Can you at least manually run it through the gears and turn the input shaft and see the output flanges spin? also turn the output flanges in opposite directions to see that the spider gears feel okay. (there should be a little resistance because of that little ring that some people like to pretend is LSD, or is that just on later trannies?)