I was wondering how big a stock rear sway bar is. I bought one for my 2000 neon for $5.00. But have not seen it yet

going off memory - i think areound 11 or 12 mm.

I think rear stock is 14mm. front is 22mm... I think... wait, now I can't remember... I know the upgraded ones are typically 2mm bigger front and rear...

Stock sways are 24mm front & 17mm rear.