If you are replacing an existing baby moon, then the easiest way to determine the correct size is to just take one cap off of the wheel, turn it over and measure the inside diameter of the baby moon hubcap. If you don't have existing baby moons to do this, then use the instructions below.
* Important Note:
Instructions below are for wheels with 3 Nub center cap Hubs.
"But my Hub has 4 Nubs" Click Here
Step # 1: 3 Nubs
Measure from the tip of one of the Nubs on the center cap Hub to an imaginary curved line that represents the outer edge of the Hub ring as if no Nub exists (as shown above in Fig. 1). Then write the measurement down.
Now measure from one of the Nub tips to the outer edge of the Hub ring centered between the other 2 Nubs (as shown below in Fig. 2).
Finally add the measurement from Step 1 to the measurement in Step 2. (Use the chart found below Fig. 2 to help you determine which size Baby Moon (Dog Dish) Hubcap that your wheel requires. These type of Dog Dish hubcaps only come in one of the 6 sizes shown in the chart below).
| Measurement | |||||
|---|---|---|---|---|---|
| 8 23/32" Click Here | 9 5/16" Click Here | 9 3/4" Click Here | 10 1/8" Baby Moon Style Click Here  50 Merc Style Click Here  |
10 7/8" Fits a standard 49' 50' 51' and 52' Mercury Wheel Only. Click for Merc Baby Moon Stainless Steel Moon Cap | 11 5/8" Click Here Solid Stainless Steel Moon Fits all 8 lug steel wheels Ford, Chevrolet and Dodge Fits many of the Ford E-series van wheels. |
| "Hey Mike! But, I'm not sure what TYPE of baby moon hubcap will fit my wheel. Can ya help me out?" No Problem! Our Baby Moon Finder will find your baby moon in a few easy steps! Baby Moon Hubcaps Finder |
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