Repro parts suck. I have found that most (if not all) aren't anywhere near the quality of build and fit and finish of original pieces.
Here is a short list of my repro parts that didn't fit well
Headlight rings, windshield center bar, door latches (rebuild your stockers). I have yet to install a bunch more parts. Basically buy repro parts expecting to modify them to fit perfectly.

Gm part = good

Repro....it's a crap shoot.


1970 Chevrolet C10
Grandpa's -- My first truck -- In progress to shiny
Follow the build in the Project Journal
1950 Chevrolet 1-Ton Dually
"Ole Red Girl"
In the Stovebolt Gallery
More pictures here
1951 GMC 9430 1 ton dually--Shiny! | 1972 Chevrolet C20- Rusty- the puzzle box lid for the C10 | 1962 AMC Rambler American- my wife's
Parts trucks-
1951 GMC 9300 | 1951-GMC 9430 | 1951- Chevrolet 1300