X2...that's what I did, I had a 60 I was parting and kept the pass side seat, also picked up a used pass side bottom cover for a 62 series and works fine.I used the passenger foam from someone parting out their truck, not like new, but a lot less wear and tear on it than a drivers seat. In my particular case, it was a notable height change. Plus, when I found this one it was a lot less $$ than SOR foam, and I needed a non torn cover as well.
I agree with LegShot, the SOR cushions are VERY firm and have remained so for eight years now, underneath my 200+ lb butt. Uncomfortably so on extended drives but very secure on the trail. They do sit you higher, I don't think 6" higher but maybe my OEM cushions weren't as bottomed out as LS's. I do have to be very cognizant of entering the Cruiser, however, and have many times low-bridged myself to the point of drawing blood from my bald pate. For the price SOR exacts, I'd suggest looking into what an upholstery shop can do for you. Once the originals are worn out, anything would be an improvement.I replaced the drivers side in my 62 with the SOR cushion. It is very good quality but also VERY firm. You sit about 6" higher because of the foam density. I would recommend using a leather punch to put some holes in the foam to make it a little more comfortable...unless you want your seat rock hard.