Hey again guys, Ok here's my problem: My truck has developed a coolant leak that from the bottomm of the truck is dripping from between the harmonic balancer and the oil pan, could it be my water pump, or water pump gasket or the backing plate gasket, or could it be something else? My truck is a '94, and I have to remove every frickin thing from the front of the engine in order to replace the water pump, and gaskets, so should I replace the harmonic balancer, and secondary balancer(pulley) as well, while I am at it? I am going to be upgrading to a HO pump, and Heavy Duty fan/ Clutch combo, if I have to do all this as well, but do not want to fork over $600+ for the heath kit. SS diesel has HO pumps and fan upgrades for less than $400 combined, for both 94-99.5 yr, and 99.5+(with the screw on fan and pressed on pulleys), will the 99.5+ yr pump fit on my '94, or would I have to replace the backing plate? Does anyone have any experience with the SS diesel pumps/fan clutchs, and can speak to their quality? Or does anyone know what parts/ part #'s I should order from Rock Auto to do this job? Do I need to use a double T-stat setup or should I stick with the single T-stat? I have removed all my vac components witht the exception of the vac pump and will be leaving that off and getting a vac delete belt, any suggestions for that belt that are cheaper than the one Heath sells? I have replaced the plugs and injectors, done the upper plenum gut, and clean before, so would this be something that I could reasonably handle, and what kind of time should I set aside for this job?