I'm in the process of doing this at the moment. The old glide was cactus so i'm putting a 4 speed from my other ke10 in it. I can so far tell ya the gearbox bellhousing bolts are an absolute prick to get to with the engine in but it will be so much better to drive in my opinion. Going by those diff ratio's i might swap diffs too. 2k is a bit rich for a gearbox rebuild for a little rolla isn't it?