Wiring or connectors mixed up ?

Start hitting switches to find where #72 is now. May help you solve it.

LTG : )

Had another thought. Check your switch matrix in the manual. If wire colors to where #72 is are correct, no mixed up connectors below the playfield. Then I'd be thinking switch matrix error. Switch wired wrong, diode on backwards, or a short to switch wiring. This would be somewhere else.

Has it always been this way ? Or start after you worked on the game ? If so start there.

LTG : )

The 65 tackle switch is the vertical switch behind the rubber to the left of the playfield art that says tackle. The ramp switch is a mini switch assembly. The manual doesn't give clear indications, probably an error, or simply lack of space to spell it out. Look at the row and wiring colors on the switch matrix chart, then find those colors on the wires under the playfield in that area, and you should be able to follow and identify both switches.

https://www.pinballlife.com/williamsbally-sub-microswitch-5647-12693-07-with-22-flat-blade.html

Blade is longer than you need. Trim to size.

LTG : )

Diode I use 1N4004 or 1N4007. Work just fine. And if ever accidentally put on a coil it won't hut anything and work there too.

LTG : )

You certainly can use the original diode, just diode test it first. The alternative is since diodes are very inexpensive and you are replacing another component anyway, it just makes sense to replace the diode at the same time. A functioning diode old or new is still a functioning diode.

As wayout440 posted you can reuse the diode.

Be sure you get the silver band end of the diode facing the same direction, and wires in the same spots.

LTG : )