Yes, that is why my mind wandered to that thought, easy to change the pump by pinching the rod with a longer bolt. I apologize to all if I may have misled you with the wrong bolt size. I should have remembered that dang near every external fastener on the V8's can be turned with a 9/16". Thank you HRL for clearing that up.

1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy