1960 NASCAR International Rule Book Specifications NASCAR Grand National Championship Circuit Section 21-27 -- Suspensions

a. Heavy duty springs may be used if similar to original equipment.

b. Sway bars may be reinforced. Additional sway bars permitted.

c. Front end suspensions may be reinforced for safety.

d. Camber: 4" maximum.

e. Wheelbase: AMA specs apply, standard plus or minus 1/4 inch. Left and right must agree. No intentional altering of wheelbase.

f. Tread, front and rear: AMA specs apply plus or minus not over 1/2 inch tolerance on either side to allow for reinforcement of wheels and hubs, measured at center of tire, zero toe-in at spindle height, standard, not offset.