Getting new tires all around and thought it might be a good idea to do shocks at the same time. 93 Ty has 53,000 miles on it...only 5,000 from me (2nd owner) so I don't have much to go by as far as determaning if the stock shocks are ready to go or not. Truck doesn't seem to ride too bad but could probably be better. Did a search and found stockers should be replaced after 40,000 miles or so. About 1,500 miles back the compressor for the leveling system was running almost continuosly....drained the battery once....it stopped running all at once and havn't heard it since. My question is should I get new stock replacement shocks or aftermarket such as KYB Monomax ($236 for 4 from Tire Rack) or Koni Monotube ($410 for 4 from truckperformance). Thanks