Upgrading - OEM suspension options for 2015-2020 full-size SUV lineup?

[BlaineBug]

I believe the time has come being that my mileage is creeping towards 78,000 that my rear shocks be replaced.  But that leaves the question - Why not refresh the suspension entirely?

 

Our 2015 Yukon SLT 4x4 with standard non-air ride, non-magnetic ride control suspension has a very plush ride, although I believe that the rear end has loosened up a bit over time.  Overall, I'd love to be able to curb the body-roll and stiffen the suspension just a bit so it isn't quite so floaty, yet isn't uncomfortable and as firm as a sports car.  I would want to stick with OEM parts only for struts, springs, and shocks.  I do not want to lift the vehicle other than maybe 1", and I certainly do not want to lower it.  I rarely ever tow so although I have, that is not a regular occurance by any means.

 

I understand there may be 3 suspensions available for me to choose from; The stiff, lower ride height PPV suspension which is likely not compatible with 4x4 equipped vehicles, the SSV suspension compatible with Police 4x4s, and the standard suspension that I have.  I have no idea how an SSV suspension rides, but as far as I know, the SSV suspension may be about 1" taller over factory ride height.  I have also thought about a pickup truck front strut and a Suburban (longer, heavier?) rear spring and shock, but I am not sure if mixing-and-matching offers any real benefits over some other OEM setup.  I would appreciate your input as well as suggestions on where to source OEM parts for a reasonable price - thanks!

Edited March 7, 2025 by BlaineBug

[BlaineBug]

Hey fellas, wondering if anyone has any suggestions or who has done a similar swap?