Its the 03-04 ish model. SRD000150 Not the so called holy grail. But perfectly acceptable to me. And i have the 3 amigos as is so all good there. Haha
Forgot to take a peek at the rear suspension to check air ride. Going back Wednesday to have a peek i suppose. Would hate to swap it and have a issue cause of it.

 

I don't think it's worth a two-hour roundtrip to check whether or not it had air suspension. It's an easy setting to check and change in the SLABS. Takes just a few minutes, but you'd need to have or borrow a scan tool that can access the SLABS settings.

 

Would i end up with just some new light shining at me on the dash or would it be a driveability issue? Shop wants a hour labor and i have no luck borrowing a more capable scantool. So the drive is cheaper than buying a nanocom at the moment. Damn me forgetting to check while I was there.

 

No lights. But you may have an occasional parasitic draw on the battery is the self-leveling system tries to adjust ride height even though it's not connected to anything. Some have reported success simply pulling the relevant relay from the fuse box under the hood, but that didn't work for me. When I tried that I got warning lights.