mechanical SBF pumps are driven by that offset ring or cam or whatever you want to call it. It should bolt onto the front of the cam gear and the dowel pin that comes off of the cam should go through the cam gear and partially through the off set ring to drive the mechanical pump.
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1965 Mustang Fastback- 289/T5, longtubes, 3 in. exhaust, flowmaster super 10's w/ sidepipes, centerforce clutch, Wilwood 6 front, wildwood 4 rear, wildwood MC, 70 mustang spindles, Shelby drop, Shelby quick steer, C&R third member, 3.50:1 gears, Detroit locker, Moser 31 spline axles, Mike Maier panhard bar, 165 race leaf springs, harness/roll bar, and adjustable rear sway bar
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