ive just picked up a set of c.e. sub connectors for my 65... they are the bolt in type, but i plan on welding them. my question is this, i know you weld the front of the connectors to the front sub, and the rear uses the leaf spring bolt as one attaching point, but is everyone also welding the rear, or do you use the through bolt that runs vertically? can i bolt and weld the rear? lastly, how much stiffness is gained by running stringers out to the rockers?