Hello forum ,I have a 55 GMC 2nd series ,The cab and doors are quite rusty and needing lots.I found a 59 GMC 9380 with a very good cab and doors ,the whole truck is way better than my 55 so wondering if the cabs are the same Id like to use the cab from the 9380 on my 55 9300 I have measured everyway I can think of and all seems the same.Athab3

Have 55 GMC 9300 short box step side .Needs restoring but starts and drives ,no brakes, also have 59 GMC 9380 with very good cab for parts.have been doing MGA's all mjy life so this is new to me