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Backyard Mechanic
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OP
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When measureing wheels to determine their width where do you measure from? Outside to outside or inside to inside? What width wheels is correct for a 1940 Special Deluxe 4 pasanger Coupe?
Thank You
Sparky
Sparky
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Measure betwwen the flanges on the rim that the tire bead seats against....4 1/2"
Gene Schneider
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Backyard Mechanic
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OP
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Thanks Chevegene!!!
Sparky
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So Gene (or anybody on line), when did Chevrolet go to the five inch wheel?? Thank you. Bill.
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My original reply to Sparky was incorrect.The 1937-48 16" wheels were 4" wide.1937-38 wheels having 8 slots and the 1939-48 having 4.
The wheels also were used on 1/2 ton trucks thru 1954 although there were optional sizes available.
In 1952,during the year the 1/2 ton truck wheels were increased in width to 4 1/2" and that was the wheel sold as a replacement for prior years-the 4" being discontinued.This came to mind today when I reread my original post.
The 1948 cars (also option on some trucks) with the 15" wheels had a 5" rim width.These were still the 6 lug wheels.Passenger cars from 1949 up into the '60's had 5" rims including the later 14"-wagons in the 60's and other options could be 5 1/2" and 6".They were all the 5 lug wheels.
Gene Schneider
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So Gene, let me be sure I have this right....
The optional 1948 15 inch wheels were 5 inches (wide). They were still six hole (lug) wheels; but 15 inch instead of the 'standard' 16 inch. Also, is it correct that these optional 1948 15 inch wheels still had the 'clips' for the 41-48 'small' type hubcaps??
And then in 1949 the passenger car wheels switched to 15 inch, 5 inches in width, with just five holes. Is that correct?? And these 49 on up wheels had the 'bumps' (not clips) to hold on the hubcaps?? Thanks. Bill.
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Correct-The 1948 used the same hub caps for either wheel.I would say about 50% had the 15" wheels.They were 6 hole.
The 1949-53 had the same wheel ( 5 hole) and hub cap clips (exception-the 1953 Bel Air had full wheel covers and no clips)...The 1954 was the first to have the humps that the small hub caps fit over.
Gene Schneider
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I think I've got it now. Thanks much Gene. Bill.
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