The design and materials used in this product are the best.

Works great

Getting the old one out was not too bad, once I noticed there was a clamp holding both hoses to the frame area. Got the new one in without jacking it up. Not bad of an install. Super good product. Just remember to add an extra qt.

Very nice kit, everything you need was there. It is massive compared to the stock cooler.

I am impressed with this cooler. Wish I would have done it sooner. So, I pull a 40ft. PJ Flatbed Trailer, I'm a Hotshot Truck hauler with my 2001 F250 Super duty. I finally had a real good test today, I hauled a 6654lb load on my trailer up the mountain, my total weight truck, trailer and load was 21.700 lbs. Pulled 6% Grade up the mountain and the Tranny never got over 195, on the level she's running 160 degrees. Also, it cools down much quicker once you level out and back up to speed. Its consistently running 20 degrees cooler. And by the way the temperature outside today in Arizona was 107 degrees. Very nice, thanks Clay, as always you have my business.

This is a much needed upgrade for anyone running the 4r100 auto on their powerstrokes from the early 2000’s. Money well spent.

I have a 2001 Ford Excursion 7.3 4WD & Texas summer temperature can reach a blistering 116 degrees which equal to a 220 degrees Transmission in my case without load. Installed this well design cooler with no modification due to my truck came with high mounted power steering cooler which literally I moved to the lower mount with no issues,,,, My temps went from 220 to 165 great product,,,, THANKS CLAY

Was having a leaking issue when towing heavy loads. Tried this first and after a quick and easy install no more issues. World of difference and great customer service from riffraff as always.

This cooler lowered my trans temp by almost 20° it's great.