it looks like we are going to have to wait to upgrade to a newer MH so I would like to upgrade the Turbo Hydramatic 400 to the 700R trans. Has anyone done this here? Seems at 65 mph its topped out, so...
I plan to use the DIY Megashift controller, its cheap enough to have a spare, around $300. Not sure what to do if the TCI controller went out on the road. That is also another reason not to use a modified 700R4, I'd rather have a basically stock 4L85E away from home in case of problems. Depending on how much paid for a core tranny, probably could get the swap done for around $1G.