I did Camber using washers and extended bolts. I wouldn’t recommend running more then 3 washers on bottom but if you do put at least 1 washer on top. if you are using 1 washer on bottom then you don’t need to put washers on top bolts.
extended bOLTS
https://shop.advanceautoparts.com/p/dorman-pik-a-nut-cap-screw-hex-head-class-10.9-m10-1.25-x-40mm-99102040/9060251-P?searchTerm=m10+x+1.25
3/8MM FLAT wASHERS:
https://shop.advanceautoparts.com/p/dorman-autograde-flat-washer-stainless-steel-3-8-in-799-303/10658390-P?searchTerm=3%2F8mm++stainless+steel+washer
thank you
https://www.youtube.com/user/ckkbleev
https://www.youtube.com/channel/UClXFjT7W-yzUa8pwC0oXumQ
@tylerkerfoot
Removing a broken or sheared bolt or stud is never easy, but if you have a welder (a mig welder is preferred) you can sometimes weld a nut to the end of the broken bolt. The heat generated by the welding process often helps to loosen the bolt and makes removal of the bolt can be achieved very easily with a spanner.