The driver's side floor pan and side sheet metal that connects to the
floorboard and forms the step inside the car at the threshold, was
badly rusted on my $400.00 jewel of a body. I cut both peices out with
an angle grinder (this took a lot of time and sprayed metal grindings
everywhere) Below is a photo of what this section looks like now (fall
2002). I have welded in a new threshold to floor pan peice, but the
floor pan that the parts house sent me is the wrong one. It seems that
a floor pan from a 1967 or older MGB is significantly wider than that
of a model any newer than 1967. I got the wider floor pan, and I am
working on a 1977 model. I am trying to get the right one swapped out
now. The silver stuff you see is something I found at Lowes. It is made
by Rustoleum and is called "Cold Galvanizing Compound" or something
similar. It is a clear spray base of some sort that is full of
small peices of zinc. It is supposed to stop or at least slow down the
progress
of rust.