Rob Bonney Fabrication 1967-72 K20 frame boxing set, designed to be used in conjunction with our Cummins Motor mounting Kits. Plates are cut and formed from 1/8" cold roll steel, and includes machined dom sleeves and gr. 8 hardware for the steering box. Welding and fabrication REQUIRED! Factory front crossmember will need to be replaced with rectangular tubing. We are currently using our 73-87 Cummins motor mounting plates in the 67-72 trucks, minor trimming of the 1/4 steel is required on the frame mounting plates to fit in that application. Made in the USA!
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