How Do I Fix This

Not sure if this is the right forum or not. Mods, please let me know if I need to move this.
These pics are of the quarter panel at the rear wheel well, looking from the door towards the rear bumper.
I swapped the 15" wheels for 17's and noticed a stark difference in the spacing of the tires to the quarter panel on each side.
The drivers side has 1.5" of clearance. The passenger side has 1/4" of clearance. I can barely get my pinkie finger between the tire and the wheel well on the passenger side.
Is there something that would cause this difference, and can I fix it?
I don't know if there have ever been new quarter panels installed so I can't say for sure if it's a case of body alignment gone wrong.
Just full transparency, this is on an E-body Chally with 8 3/4 rear end.
Thank you in advance for replies.

Driver's side...
0307202116.jpg

Passenger side...
0307202117.jpg