Okay, just measured the two front most mounting rivet of the shock upper mount.
The bottom front hole of the upper shock mount measures 11 1/4" from the front of the frame rail to the center of the hole and 7/8" up to the center of the hole from the bottom of the frame on the outside of the frame.
The upper front hole measures 10 1/4" back from the front of the frame rail to the center of the hole. I figure the location of those holes and the rest fall where they go.
I didn't measure the upper front hole up from the bottom of the frame rail, I figure a line scribed down the frame rail, there is only one place the upper hole will align with the scribed line once the bottom hole is located first.
Hope this helps, if not I can measure some more on it.

John

Last edited by Whitelightning; 12/21/2013 1:07 AM.