Factory Side step bars?

[Boss]

I noticed while I was changing the rear main seal, that the bolts that go north to south for the side step bracket are missing. All of them. The “U” nuts are there tho. Any idea what length they should be? Also what size and thread? I seen “U” nuts that are 8mmx1.25 it had a GM number for it. I just want to be positive before I order them.

 

[2003VAAV]

I noticed while I was changing the rear main seal, that the bolts that go north to south for the side step bracket are missing. All of them. The “U” nuts are there tho. Any idea what length they should be? Also what size and thread? I seen “U” nuts that are 8mmx1.25 it had a GM number for it. I just want to be positive before I order them.

I removed mine, like the look better. When I can, maybe tonight or tomorrow afternoon I'll grab one of my bolts and check the length and thread for you. If you figure it out before I post here then please post so I know and don't spend time finding and measuring.

 

[ygmn]

what year?
what style side step?

 

[Vaeagleav]

I assume that since you started this thread title with the words step bars you are meaning the tube steps that are stock for a Z71 AV and not the side running boards on other model AVs. It may matter which generation AV they are on (first gen is 2002-2006, second gen is 2007 to 2013).
If first gen AV it may matter if WBH or cladded model as well.