1941 -1946 all use recirculating balls inside, the '41 has different size balls then the '41-'46, but the whole units interchange. '41 uses 1/4" diameter balls, 42-46 uses 9/32" diameter balls, housings are the same.
Shop manual shows cast number 267733 as fitting 41-46 ( AK,AL,AM,BK,BL,BM,CK,DP.DR ) ALL UTIL and AN,BN,DS, exc. COE
