Does anyone know how i can figure out the diameter of a sway bar off of its circumfrence my geometry skills are lacking as i dont remember the formula or to be 100% sure if there is one. OR someone could just tell me the stock front sway bar size off of a 1991 s15 gmc jimmy 4x4.

 

divide by 3.14

It's that easy.

The diameter of a circle will wrap around the circumference 3.14 times (PI , π)

 

i knew pi was involved because it is the ratio of the circle but i wasnt sure if it was radius or diameter though d=2r but I wasnt going to mess around with bad math