I keep losing the rear center caps off of my 97 - F350 4x4 with aluminum rims, (non-dually) as these are very expensive through the dealer were can I buy substitutes, or is there a substitute. Also would the center caps off of the newer trucks fit on mine? the caps looks like a better design as they fit over the actual bolts, might hold them in better. Thanks.

 

Try using some of that blue thread locker on the bolts that hold them on and tighten the you know what out of them.

 

Thanks for the reply, the caps on my truck are a press on fit with no bolts, screws or whatever holding them on. There's a spring ring on the inside of the cap that presses against four plastic tabs that push onto four out of the eight lug nuts which holds everything in place. Not a very secure design. I'm assuming that in time the spring ring/tabs loosen up and off she comes!

 

Ooopps. Forgot that the 250's have different wheel setups than the 150's.

Sorry I couldn't help.