I want to replace the bushings on my front sway bar, but when I look for them I find 28 & 33mm sizes. Is there any way to tell which one I have other than laying underneath and measuring it?

 

Nope you pretty much have to get under there and measure it.

 

Or just pick up both sizes and return the one that doesn't fit.

 

Or that!^^^^^

 

I will measure it this weekend when I do my power steering lines. I might use Swartlkk's suggestion.