Replacing out side door sills

[Brocks GN]

I bought some new one mine are cracked. When I went to put the new ones in the front part does not fit correctly and also a couple of the screw holes have the felt in the way? What is the part number for the out side door sills from gm I cant seem to find it again. I want to make sure I have the right ones.

 

[Brocks GN]

Anyone? Should I just drill new holes? It fits good but the only problem is up front where the door kinda slopes up the sill does not fit there I can push it down and seems to look ok.

 

[turbofish38]

The GM part numbers for the GN's are right-20674282 and left-20674283. Usually the holes are spot on so you dont have to redrill. What part numbers did you get? The fit was never the greatest and sometimes you have to tweak them a little.