[Stepside Jim]

Thanks for the pics. I see from your first post you mentioned 2 inches being the difference from side to side.

I'm looking at the second picture, there is no rack installed and engine is out. I see the passenger side rack mounting hole/holes. The picture doesn't show the driver side unfortunately.

The best I can tell it looks like there are two holes in the bracket, I'd be curious if there are two holes in the drivers side also, giving the chance to accidentally mount the rack off center to the frame with multiple mounting holes.

Although you mentioned 2 inches difference and the bolt holes are 1 inch apart in the rack mounting bracket, this one inch offset does equal 2 inches in final measurement since you add one inch to one side and take away 1 inch from the other side.