Gm Factory Running Boards

[quirinpn]

can anyone tell me the size length etc for a set of the black plastic six inch oval boards, I think there are three or four brackets and two square holes at each end? thanks

[MacA]

can anyone tell me the size length etc for a set of the black plastic six inch oval boards, I think there are three or four brackets and two square holes at each end? thanks

 

Late reply, but better late than never!!

 

The ones that came with my "old" GM 6" oval steps were metric 8M x 30mm. Here is the installation instructions that came with mine. Should have all the info you need....