Pretty much the whole thing I just kept trimming little pieces till it fit in an to adjust the new ones they have I believe a 10mm bolt on the back that’s actually the adjuster for the new ones and I can say after driving a lot on the dark it’s a night and day difference
I’m doing the same exact same light in a 99 F350 7.3 Dually.
dude you have to take the light adjuster screw completely out to fit the new headlight?
Did*
Pretty much the whole thing I just kept trimming little pieces till it fit in an to adjust the new ones they have I believe a 10mm bolt on the back that’s actually the adjuster for the new ones and I can say after driving a lot on the dark it’s a night and day difference