Has anyone replaced thier shocks with Gabriel ultra truck units sold at auotozone ? How do these compare to the factory units? My FX4 has almost 65000 miles and I'm thinking about replacing my factory shocks and right now they have these at 20% off a set of 4.

 

I have no experience with these shocks but I know they have a few sets of 4 on ebay right now going for under $200