Review on 🚗 Enhance Vehicle Performance with ACDelco Specialty 519-30 Rear Spring Assisted Shock Absorber by Trevor Bannister

I installed them on my 2011 Silverado 4x4. Also changed the front suspension. The spring was so stiff that I had to use a jack to compress it enough to fit the mounting bracket. They were very noisy when I ran into a bump. I've driven over 2000km since installing it. At freeway speeds, the truck bounced as if the suspension had completely worn out. After I got back from my trip I bought another set of rear shock absorbers and the problems went away.