The body filler isnt for the repair I welded entire seam of frame on both sides and am covering every weld with filler to smooth frame. When repairing do not cut out small holes, and the white pieces are my templates I made, they slip over mount and I have a center hole marked then used a 1- 1/2" hole sawto cut hole, I think a 1-3/8" would work better
Jerry Tallman 69 455/4sp Windward Blue, deluxe parchment bench seat, under major restoration je_tallman@yahoo.com