Ok from the 54 and prior master parts manual
22-8-5 hub cap is the small cover not fitting the entire wheel opening
22-1-42 has Wheel Covers which cover the entire wheel.
22-8-57 is the cover, grease over the bearings in front wheels and is just
cap under the section called Hub Cap
Little bit of evolution taking place here.
----- Original Message -----
From: "Bill Watson" <wwatson@xxxxxxxxx>
To: <L-FORWARDLOOK@xxxxxxxxxxxxx>
Sent: Thursday, December 18, 2003 7:46 PM
Subject: Re: [FWDLK] Terminology: Hub cap / Wheel cap
> I have a copy of Chrysler's 1972 parts catalogue in front of me and it
> refers to a "Wheel Hub Cap" that covers the centre hub and the lub nuts.
>
> The small cap used on the front wheels to cover the nut, cotter pin and
> grease is referred to as a "Wheel Grease Cap".
>
> See Section 22-08-0 : Wheel Hub Caps
>
> The present term for the hub cap and grease cap came into being when
wheels
> became removable from the hub / axle by using lug nuts or bolts. In the
> days of the Model T the wheel was held on to the axle ends by the nut and
> cotter pin in the centre - the same one that today is used to hold the
drum
> or disc in place. It wasn not until the mid-1920's that four wheel
brakes
> became common. Prior to that brakes were only on the rear wheels.
>
>
> Bill
> Vancouver, BC
>
>
> ----- Original Message -----
> From: Wayne Graefen
> To: L-FORWARDLOOK@xxxxxxxxxxxxx
> Sent: Thursday, December 18, 2003 5:15 AM
> Subject: [FWDLK] Terminology: Hub cap / Wheel cap
>
>
> Technically, the "hub cap" is the cap on the end of the spindle poking
> through the center of the wheel. It covers only the hub where the
bearings
> are housed and packed in grease thereby keeping dirt and water out of the
> bearings and keeping the grease in. Think of the cars of the very early
> '30s (like a Model A F__d) and earlier where the "hub cap" truly coverd
the
> bearings and grease on the spindle. Once the wheel caps covered the hub
> caps for ornamentation, and to give a larger place to promote the brand of
> the automobile in large chrome and bright colored letters, people confused
> the two terms.
>
> A "wheel cap" is any appearance item that attaches to the wheel to cover
the
> "hub cap" and lug nut area. Thus whether the wheel cap is small covering
> only the center of the wheel (small or standard wheel cap) or is large
> covering the wheel to or almost to the tire ( large, full, or deluxe wheel
> cap) they are ALL wheel caps. Not all wheel caps were chromed or bright
> stainless either: in 1942, when some "blackout" models were built for the
> war years, they had black or gray painted wheel caps.
>
> I don't know who invented the term "dog dish hub cap" but it became
popular
> sometime after the muscle car era and it still sound silly to me. Its a
> "dog dish" if you leave it off the car and it fills up with rain but under
> no conditions is it actually a "hub cap".
>
> Wayne
>
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