I personally know 3 guys with "f"-bodies who have done conversions. I too just recently converted my 67 LeMans. In all cases, the total cost was more than any of us calculated. Lucky for me, I bought EVERYTHING back when our Bird as hit and we parted it out. Otherwise, I'd never have been able to come up with the cash for such a project. Not to mention, I had my completely rebuilt M21/22 from the Bird along with the bellhousing.

Another thing to keep in mind when installing one of the newer trans out there, either a 5 speed or 6 speed etc. in the event you go to sell the car, something other than an original 4 speed may not be as desireable.

Two of my friends who did the 5/6 speed conversions on their "f"-body cars did so thinking it would enable them to drive the car more often and or further distances. Now that the conversions are completed BOTH of them wish they had gone the OEM 4-speed route.

What they found is that even with the 5/6 speed they still don't drive their cars any more or any further than they would have if they had gone with a 4-speed. They also claim the newer style trans don't have the feel of an "old school 4-speed muscle car". In addition, there were several mods required to make the newer trans work and neither of them were able to use their stock consoles. The one guy went without one, the other butchered an OEM console to the point it looks horrendous.

I personally have driven the one, it's a second gen T/A, he used the Tremac 5 speed. Although it shifts really smooth and it does drop the RPMs considerably, I wouldn't want one if it was given to me for free. IMO the car totally loses it's overall feel. Just something to keep in mind...