I have searched this site up and down, looked on various GM Parts sites and CAN NOT the freak'N hub bolts, neither the part number or a diagram that shows the bolts. I have a 2003 and I need these. I've done been to hardware stores and can't find anything close enough to work and prefer OEM bolts. ANYBODY know the correct part number?? 13mm hub/knuckle bolt. I can find diagrams for the wheel hub and the knuckle but they don't show the bolts, go figure.

 

First, if they are undamaged, you can re-use them without problems (I've re-used them on almost every car I've done a wheel hub on). The one case I did not was due to the head rounding. Hit the hardware store for a bolt of the same thread type, you may want to add a washer and lock washer, but that will do it.

If you want genuine GM, it is a dealer item. Go to the dealer parts department and talk to the guy at the counter and they should be able to set you up. But GM OEM bolts can get pricy.

 

I rounded one bolt off and when I do the other side I expect more of the same. And chances are or MY luck, local dealer won't have them in stock and would order them which would cost me more than if I ordered them myself from the comfort of my chair.

 

The part number for these bolts are 11570580 and I choose the MOOG wheel bearing part number 513179 and it's made in Korea not China like the box. I did have to heat all 6 bolts up to get them out and use a puller on the hub. Hub bolt heads are 13mm and wheel nut is 36mm and caliper bolts are 15mm. Hope this helps other people, my monte is 2003 ss.