Slowly starting to agree with you on SP shocks. One rear rattled on the sierra, now my LF squeaks ALL THE FUCKINGTIME. And ride seems to be deteriorating quickly. Guess ill be on the same hunt as you for some improvement. Soon
Its ridiculous, and drives me fucking insane. Even my dad noticed the ride difference. now I must try and figure out what to buy. for 4/7 on GMC and 3/6 on le silvy
Belltech shocks, ever since i was a kid i remeber my old man putting his nitro drops through warranty ev er year, squeeks rattles or just plain old piss out leaking
however, all 8 of my SP shocks are still working great