Let me double check the flow on Wednesday & I'll get back with more details for the install. Thanx
Ok. I screwed up in the description with the pics. It is now fixed. My fluid direction is ok. Too much allergy medicine. The fluid flow is as follows: out of tranny, into H2O radiator, into Tru-Cool 4739, into OEM tranny cooler, into tranny filter into rear of tranny.
As far as reduced fluid flow I did not do a test. Dieselsite.com advised me that the fluid would be OK. Also on their site there are pics of a similar install. Dieselsite.com did advise me to keep the hose lengths to a minimum, add more fluid as needed and to use the same diameter hose.
As far as the install goes you will be working in front of the bumper and on your back underneath the bumper, this is what I did:
I removed the black plastic air dam on the bottom of the bumper/radiator to fit the 4739 in place. It pulls off easily with a little help from a screw driver. The kit came with 3' of hose, self tapping screws (front view), metal straps & bolts (bottom view) & hose barb fittings. I purchased the 3/8" 90 degree elbows @ NAPA for around $4.
1. Fasten the hose barbs to the in & out of the 4739. Use teflon tape. 2. Attach the top brackets (front view) with the self tapping screws. I used a drill with a 4" extension & a hex bit to grab the screw. 3. Attach the metal straps (bottom view) to the 4739 and the radiator support brackets. There were holes already in the radiator support brackets that I could put my bolts thru. I used a vise & a pair of pliers to bend the metal straps into shape. It took a few trys but not a big deal. After that the 4739 is very secure and did not move at all. (Sip on beer) 4. I then attached the fan. I did it in this order cuz there is not a lot of room and I wanted to make sure the fan was as centered as possible on the 4739. I had the fan laying around but you can purchase them @ Pep Boys for $40-$70. They come in different sizes. It is made by haydenauto.com. (Sip on beer) 5. I then attached all the hoses. I only had to add 20" of hose. I then put hose protection where I thought the hose might rub. 6. Last I ran my wiring for my fan. (Sip on beer) You can hook the fan up to a switch or Pep Boys sells a thermostat (in the fan section) that turns the fan on/off automatically.
I then took it for a test drive to check for leaks and added tranny fluid. (around 3/4 of a quart) In all it took me around 4 hours and 2-3 beers to complete. Most of that was figuring out how it was going to fit, where I could fasten it to the van & bending/shaping the metal straps. If I had these instructions and the pics I could have done it in 2 hours.
Hope this helps and good luck,
Rob