Spring or frame?

[6.0junky]

Hey guys while Im on here Ive got a question and I dont know how to explain it that well. Im pretty sure that my pickup has been wrecked and fixed. Here is why, my head light on the passenger side is a replacement bezel and turn signal, it quit working and I had to wire in a factory harness again, second the seams on the hood and left fender are a perfect match but the right fender is off, and third, the passenger door I believe has been replaced, the mirror does not sit the same angle as the drivers mirror but is locked in position like it should be, and my key wont work in the door, and lastly the left rear of the pickup sits lower than the right rear. I personally think that maybe there is a bent spring do to the fact that the previous owner had a fifthwheel camper. I dont know for sure and cant prove it but the dealership said nothing when I bought it and maybe didnt know. what are your suggestions how would I make sure that its the spring that is bent? or check the frame?

[PS/Fan]

Take it to a body shop that has a frame rack.They'll be able to tell you.

[6.0junky]

ok thanks will do

[WildStyle]

Left rear spring will always wear and sag more, the fuel tank is on that side.