Jamoke'

I just measured my kg-4 woofer cone diameter at 6" & roll ends at 6-7/8". That 1st kit currently (now 2020) lists roll starts/cone O.D.as 6.050" & roll ends at 7.205" My edge roll width is 7/16" where as the kit's edge roll is slightly over 9/16". Other than the roll end being about 1/8" big on each side it could work IF it clears the basket edge or another possibility is installing the roll curved out instead of in (as original)