I ordered these for the front of my 1994 GMC K2500 (ZGG 8600) in 2017, they fit and work very well, my truck is very heavy and I do a lot of off-roading at my family ranch in the Black Hills of northeast Wyoming - when/if they wear out - I'll be ordering another set. Quality Materials & Finishing (Updated August 22, 2021) I still have this set of these quality shocks on my GMC, no leaks just a smooth ride both on pavement and off road. I highly recommend them if you have a very heavy truck.