Jack, the standard rubber mount you can't do much with because the cross member pad is offset. If you used a generic GM transmission mount it wouldn't line up. I generally cut the pad off and relocate it so I can use the standard GM type mount, but poly, and it sits lower than the G-body mount. It comes with a shim, and 2 of them still leave my tail housing low. I thought you may have also relocated it, as that is standard procedure among my guys who are tired of the rubber stock mount ripping apart even with mild V-8's. I had heard a G-body poly mount was in the works, but I am unsure if it materialized. How about the cross member isolators at the frame rails? Too thick ones will raise the trans also. I use solid shims because the rubbers go bad and I can also raise the cross member that way. No vibration problems using solids. Maybe you could remove them and just bolt it up, seeing if that raises the fan enough. As for the clutch fan, get a piece of cardboard and slip it in front of the radiator while the motor runs. As the heat builds, you should hear and see the fan engaging. Remove the cardboard and it will cool down and freewheel. To really see it, paint a white stripe on a fan blade and use a timing light to illuminate it. You will see it speed up/slow down with the temperature changes.
