It works by connecting to the oil pump shaft through the distributor hole and inserting in oil pump. It works by connecting to the oil pump shaft through the distributor hole and inserting in oil pump.
Proform Engine Oil Pump Primer 67566; Black Steel for Ford 260-302 SBF
OIL Pump Primer Tool 1/4 Hex for use with Ford Engine 289 302 390 428
CTA Tools 2103 Oil Pump Primer Ford
Melling MPL-201 Engine Oil Pump Primer
Moroso Oil Pump Primer 62250; Steel for Chrysler 318-360, 383-440 LA/B/RB
Proform Oil Pump Primer 66896; w/ Bushing, Black Steel for Chevy 4.3, SBC, BBC