Wiper linkage arm

I found the $25 dollar one on R/T Specialties and then found it on Ebay. It shows on ebay though that that is only for 69-70 so I am not sure if that will work on my 72 Duster or not.

MOPAR 1968-70 A/B Body BUSHING SET WIPER A/B BODY 2 SPEED Charger Road Runner | eBay