Can I use a readily available 2 speed ’72 Charger wiper motor to replace my near impossible to find 2 speed ’71 Charger wiper motor?
*I realize I could get my ’71 2 speed motor restored/repaired, but all I’m looking for is a basic parts store price and quality

*The ’72 wiper motor looks the same as my ‘71, but I am aware that the ’71 B body uses wiper crank/pin arm 2822290, whereas the ’72 Charger uses wiper crank/pin arm 3431553

When I look at pictures online of these two crank arms, they look virtually the same?
So my question is: will I be able to use/mount my 2822290 crank arm on the ’72 motor shaft?

Update for ’70 & ‘71 E-body, and ’71 B-body 2-Speed Wiper motor replacement:

I have learned that the readily available/affordable parts store ’72 Charger(’73 Challenger) wiper motor is a direct bolt in, and the ’71 linkage crank arm will bolt up, but is a bit loose due to the ’72 motor has a smaller shaft.

For me, this resulted in sloppy wiper action: The wipers wouldn’t cover as much windshield, and the would not park properly(wouldn’t hide away completely) – due to the slop.
Also, the ’72 motor shaft Parks/stops in a slightly different position (*this probably also attributes to not parking in the correct position).

Upon further investigation I found out the ’72 Crank arm motor shaft rectangular cutout is at a different angle than the ’71 Crank arm.
So, I purchased a ’72 crank arm(pt#3431553) on eBay to go on my ’72 motor. It fits perfectly w/no slop. Now my wipers work perfectly and park perfectly, - like brand new!