There are bolt-ins that don't require any welding. What they do require are holes in the frame rails to bolt through. Having just had mine replaced(rear frame rails), I've had to think long and hard on whether to have holes drilled in brand new metal.
1968 400 Coupe, verdoro green, black vinyl top, auto 1969 GTO Judge coupe, Carousel Red, manual 1971 Trans Am, cameo white, auto 1970 Buick Skylark Custom Convertible 350-4(driver), Fire Red, white top, auto 1972 Buick GS Stage 1, Royal Blue, black vinyl top, auto
