I replaced my original shocks last year on my 97 1500 4x4 with some cheapo Pro-comp ES9000's. My front end started to bounce like crazy when I hit a bump at speeds over about 40mph, to the point I'd have to stop the truck to get it back under control. I replaced the trackbar with the Moog replacement, I thought that might help, but it didn't. I then went on ahead and had a front end alignment done, and no improvement. I spent some more money, and replaced the cheapos with the Monroe Sensatrac shocks. I figured that would probably correct it. Nope.
This is a stock truck, no lift kit, and and stock-sized tires. It seems like the front drivers side tire is bouncing like a basketball when it happens. I've double-checked air pressure in the tires, and they seem ok. The tires are a couple of years old, with maybe 20k on them, goodyear something or other. Any ideas on what to try?