<font color="green"> If they are thicker then it's the first I've ever heard of it, nobody has mentioned it on here in the past year at least. For that matter, I bought some spring perches that fit on my 1 ton 14b FF and I know some other guys that have put the same perches on their 3/4 ton 14b FFs, so I'm pretty sure that they're the same. </font color>