Ok,
I need some center caps to replace my old ones for my 1998 Ford F150 XLT. I have been looking for these FOREVER now and I still have not found anyone who sells the exact size I need for my wheel. I have the 16x7 wheel, with a 5 X 135mm bolt pattern and a 14mm inset. I believe the part number from Ford Co. is F65A-1A096-JA. And the center cap diameter should be 7 and 1/8ths, from what I gathered online.
It seems like ford made about 6 different wheels for that year or something since I am still unable to find the ones I need. The wheel is kind of a spoke type version, aluminum I think. Its the premium wheel for the XLT of that year, not the cheesy cheaper looking steel wheel. If anyone has any info on where I can get these wheels please let me know. Ive checked ebay mostly and still cant find the size I need. Thanks in advance!!
I also have a picture of one of my wheels with the center cap on it for reference, if anyone needs to see what im talking about.

 

Try J C Whitney.

 

Try here

Although you should probably call to make sure you get the right colors and all.

 

Affordable Hubcaps and Wheels on Harry Hines just south of Forest Lane. 972-241-Caps Ask For Scott he's got every thing. Tell him Nick sent you.

 

More specifically 11619 Harry Hines Blvd. Dallas Texas 75229

 

Look on Ebay you will find lots of them fairly cheap.

Start at: http://pages.motors.ebay.com/browse/overview.html

Select: "Parts & Accessories" from the pull down menu.

Search on the words: "f150 center caps"