When I did one I used an aluminum "T" supplied by VanAmburg in the RH water hose that runs from the front cooler to the thermostat (between chaincase and oil tank) and ran the 3/4" hose from it back to the tunnel edge cooler. This is the "cool" side (water returning to the water pump). On the LH side I just ran a 3/4 hose from the edge cooler up over the clutch cover to join it to the stock 1" hose that goes to the stock radiator (this is the "hot" water coming out of the motor). I cut off the 90 degree bend on the end of the stock hose and attatched it to the 3/4" hose to the edge cooler using a radiator cap holder form a Mountain Max 700 (p/n 8CR-12591-00-00) It works great to relocate the radiator cap because one side of the fitting is 1" to go into your stock Nytro hose, and the other side is 3/4" to fit the edge cooler hose. I also went to NAPA and got a block off plug for the hose that went to the stock tunnel cooler.
Sorry I dont have the sled here to take pics of, but if you send me your e-mail in a PM I could send you some Tuesday.
