I just purchased a 99 Pete 379 and recently saw a Facebook post saying a guy put 389 doors on his 379. My question is, what year 389 doors would fit my 379?
pavrom is right. Any door will fit the hole, but you have to be aware of the slope of the window on a 389 makes it where you can't put your same door mounted mirrors back on. Will have to swap out to cab mounted like 05+ 379s and 389s. 4 State sells the mirror arms. CSM Cab-Mounted Mirror Main Bracket Kit With Hardware For Peterbilt