97 EB at 240K, due for suspension rebuild (have all of the parts to replace aging air system, just need time). 00 XLT at 212K, replaced intake at 201K, also plugs, hoses, water pump, IAC, EGR, and any seal or gasket I could get to. Both have 5.4 auto 4x4 and broken vent doors. Bought the 97 4...