As I noted above, all 235/261 chevy cranks have three dowels, one is offset to correctly locate the flywheel on the crank so that the timing bb is correctly positioned to indicate tdc. On the powerglide equipped 235 pass motors, same deal. Three dowel holes in the flex plate. It’s actually pretty ingenious!
Last edited by Dragsix; 02/26/2025 4:35 AM.
