So my 06 had a flat driver seat. You could feel the frame on the left side. The foam was torn in that spot. Working at the dealer I get parts 10% over cost. I put a new oem cushion in and now it's like the left is super tall. It's firm and the bolster sits high like it should but the right now seems to sit low and I feel the frame slightly like I'm leaning right. Today a 09 2500 came in and that seat bolsters were even left to right and it is firm like a 2018 Laramie seat. It does have aftermarket leather tho but that shouldn't help much. Is there a aftermarket seat cushion work more support than oem? I found some upgraded ones at Geno's garage