Front hub dust cap sizes?

[MoPar~Man]

For drum-brake cars, were there 2 different hub sizes? 1 9/16 and 1 13/16 (1.6" and 1.8") ?

At some point in the past year I bought a couple of Dorman 13976 front-hub dust caps. I later discovered that they don't fit - they're too small.

At the time, the part was a Dorman 13967, but currently rock auto shows a Dorman 618100. A part search for 13967 comes up with 618100 as a matching part.

My original dust cap measures as 1.78 inches, or I guess close enough to 1 13/16.

The application list for the 618100 / 13976 (see below) shows a bit of an odd mix of cars, some what peculiar is Monaco (68-72) and Polara (66-72) and Newport (71-72).

Poking around a little, I've come across a Dorman 13996 which is 1 13/16" (1.81 inch) so maybe this is what I'm looking for? The application list for this one is strictly mopar, various years that run from 73 to 95.

Were there indeed 2 different hub sizes? If so, what determined which car model / year had what hub?

More Information for DORMAN 618100

CHRYSLER NEWPORT 1971-1972
DODGE A100 1968-1970
DODGE B100 1971-1973
DODGE B200 1971-1973
DODGE CHALLENGER 1970-1971
DODGE CHARGER 1966-1972
DODGE CORONET 1966-1972
DODGE D100 PICKUP 1963-1973
DODGE DART 1966-1972
DODGE MONACO 1968-1972
DODGE P100 1968
DODGE P200 1968
DODGE P300 1968
DODGE P375 1968
DODGE POLARA 1966-1972
FORD FALCON 1965
FORD MUSTANG 1965-1966
FORD RANCHERO 1965
PLYMOUTH BARRACUDA 1966-1972
PLYMOUTH BELVEDERE 1966-1970
PLYMOUTH CUDA 1970-1972
PLYMOUTH DUSTER 1970-1972
PLYMOUTH FURY 1966-1972
PLYMOUTH GRAN FURY 1972
PLYMOUTH ROADRUNNER 1968-1972
PLYMOUTH SATELLITE 1966-1972
PLYMOUTH SCAMP 1971-1972
PLYMOUTH VALIANT 1966-1972
TOYOTA CARINA 1972-1973
TOYOTA CELICA 1971-1975
TOYOTA COROLLA 1971-1987
TOYOTA CORONA 1968-1974

 

[CBODY67]

You realize you can also check specs at the Dorman website?

 

[MoPar~Man]

You realize you can also check specs at the Dorman website?

Going to Dorman's site and entering car info ('67 Monaco) wheel bearing dust cap they still give 13976 which is too small.

13976 Wheel Hub Dust Caps
Application Summary: Chrysler 1972-66, Dodge 1973-63, Ford 1966-65, Plymouth 1972-66, Toyota 1987-68
Application Notes: Front
Outer Diameter (in): 1.60 in

 

[CBODY67]

Did you also click the "Where to Buy" button to see who might have some you could look at locally? In reality, that listing is "potential" stocking locations, but an inquiry at the indicated auto supply might further indicate availability.

 

[Sixpactogo]

I bought some from Rick Ehrenberg. Here is a link.

https://www.ebay.com/itm/225899545555?_

 

[CBODY67]

I bought some from Rick Ehrenberg. Here is a link.

https://www.ebay.com/itm/225899545555?_

Thanks for the link. Are those light-chrome plated or just shiny metal?

Just curious,
CBODY67

 

[Sixpactogo]

Thanks for the link. Are those light-chrome plated or just shiny metal?

Just curious,
CBODY67

They are definitely not Chrome. Probably cadmium or zinc. I bought some for my car a few years ago after trying 4 or 5 from the parts houses. They fit exactly like my originals except for all the dings dents and rust. All of the parts house caps were too short. Must be shivvy only.

 

[MoPar~Man]

Rock auto has the Dorman 13996 for $10. It appears to have the correct dimensions to what I need, their application data is either wrong or I don't know what:

More Information for DORMAN 13996

I'm still waiting for anyone to chime up if these hubs had different dimensions over the years.