The first two pictures of my 5000 I completely restored last year.
The 3rd and 4th pictures are from a 5000 I got a few weeks ago, can you see the difference on the propane tank pointer position on the two grills, much differently they are.
My 5000 is a early 90s, the other I'm guessing a mid 90s ?
Is my pointer in the correct spot, during disassembly and reassembly, I didn't change anything.