We just got a '35 Chevy 1.5 Ton Stake Bed (Rust Bucket). Think this could have been my Dad's in the late 30's early 40's. Have 650x20 Duals and 600x20 on the front. What was accurate for this year? Need to get some tires and tubes to get this rolling around the house. Second Question is what size 6 cyl. is in this truck? Casting numbers on the pass. side of block are 837591-2. I am assuming it is the original but really have no idea. Any help would be appreciated. Thanks