Originally Posted by
pcbp97
buy yourself a joggler tool to put a swage in the new panel of about 10 mm deep,drill holes in the existing sill,use self tapping screw to hold repair panel,tack the panel where it butts up then remove screws and plug weld the screw holes. nice and strong this way. HTH

dont do this on a sill, yes its strong but will be a moisture trap and rot again pretty quick
Originally Posted by
dingla rs
I wouldn't remove any more metal than needed as the replacement is
Made out off thinner steel place the new sill section
On top clamp it , then use a very fine disc1mm and cut throw
Both new an old panel that way ur left with a perfect but joint
To weld
do this