well, my $0.02 is pretty much what has already been said. On my F-100 I had to take the radiator out and boiled out at the local radiator shop, then put in a new thermo....hasn't heated up since....on the column to floor, sounds like linkage.....I put a C4 auto in mine....solved that whole clutch and linkage problem.
Truck has over 350K on it....still running strong
