Jon Mann 1 item(s) found Wanted: 1937 Ring & Pinion with a 3.73 gear ratio. Parts Wanted I'm looking for a 1937-39 rear differential ring & pinion set with a 3.73 gear ratio. Set part no. is 602440. Ring part no. is 595022. Pinion part no. is 595021. 41-11 hypoid teeth. Thank you. Jon Mann