fender extensions

[okc69camaro]

Without taking these fender extensions off, can someone tell me which one is a reproduction and which is original (if any)?

The left side has a hole in the top and a square hole at the bottom where it attaches to the lower valance.

The right has no hole in the top and no square hole at the bottom.

Thanks in advance.

http://www.yenko.net/attachments/116747-right_ext.jpg

[okc69camaro]

This is the left. http://www.yenko.net/attachments/116748-left_ext.jpg

[resto4u]

They both could be GM, because they used both kinds of thread inserts. Left is GM, right is ?? maybe GM

[okc69camaro]

resto4u, thanks for the help. I figured the left was GM because it was so much heavier, but was not sure.

The reason I asked this was because the left fits so well with the grill and fender. The right fits like crap so I'm looking for another extension.

(And now I realize that square hole is where I thread insert popped out)