Does anyone know what size the front sway bar is on a stock 2002 F150 Supercrew 4x4 5.4L with the FX4 package is?

I tried to measure it with a micrometer and got 30.5mm. All the dealers I've called have no idea. All the kits I've seen online are 22, 23, 25, 27, 28.5, 31 & 33. I need new bushings, that's why I'm asking.....Thanks.

 

I would call the company that makes the bushings and ask which ones are compatible with your truck