I have been watching this board for the last 8 months or so, and appreciate all the info while looking for and buying my 80 (94 w/ 96k). Now I have a concern that you guys may be able to help with. When I drive slowly (under 20 mph), and let off the gas, the transmission suddenly upshifts very firmly. Like whip-your-head-back firmly. This only happens at low speeds, and doesn't happen in Power Mode. There is no noise associated with the abrupt shift, and everything else seems fine. The trans fluid looks fine and smells fine, but I plan on having it changed in the next week or so anyway. Any ideas?