Your link is not dead...that is exactly the brand trans coolers in my GP. Long (aka Dana) Double Stack coolers. I have (2) 18,000 GVW Long coolers in the grill, one one each side in the nose. Total GVW rating obviously 36,000 GVW doing all the trans fluid cooling OUTSIDE of the radiator...the cooler lines do not utilize the stock coolant radiator at all. All Trans fluid cooling is done by the Long Coolers. The single Long 24,000 GVW cooler in your link will be more than adequate for the cooling needs of the 4T65E transmission...my setup is a probably more than the transmission fluid needs although I have zero issues with the fluid being too cold in the winter months except that in temps below 20 degrees,the transmission takes about 3 miles of driving very easy before the fluid gets warm enough to shift into overdrive (88 degrees). In urban driving in very cold temps, driving in stop and go situations, the transmission fluid needs about 1-1.5 miles to heat up enough for overdrive since the torque converter slippage when stopped in drive from an automatic creates heat faster. I went with the (2) 18,000 GVW Long coolers since it was easier to get the smaller coolers in the grill but if I was doing it again, I would use a single 28,000 GVW cooler since it will fit and is more cost effective.
Since your question has come up, I am happy to report that the engine and trans in the GP is coming up on 180,000 miles with zero issues with either component. The trans continues to functioning perfectly with no hard shift occurence now for almost 100,000 miles...unbelieveable. I continue to change the trans fluid and filter at 20,000 mile intervals now. The transmission simply functions perfectly...zero hiccups.
Besides the Long 24,000 & 18,000 GVW coolers in my 94 Mustang GT with the full transgo shift, I am about to add a Long 28,000 GVW Cooler to my Chrysler 300 which BTW cools the trans fluid solely by air utilizing the bottom 1/3 of the AC condensor as a cooler. Since the 300 has lots of room under the hood and in the grille, I bought a Long 28,000 GVW cooler but I will also be adding a component that I first used in the very late 70's/early 80's on my first car a Nova SS....A remote transmission filter that utilizes a 1 QT oil filter in conjunction with the tiny filter in pan filter (I also have this one in my inventory and ready for install):
http://www.summitracing.com/parts/de...U1caAmGs8P8HAQ
I probably should have added this type of remote trans filter to the 4T65E back when I did the coolers/Transgo shift kit at 88,000 miles since I probably would have extended the trans fluid/in pan filter changes to 30,000 miles since the oil filter on the remote adapter is easy to change at 10,000 miles intervals.
I sold the Nova SS in the early 90's with 2 regular tube and fin coolers (no double stack ones back then) and this style remote Trans oil filter after beating the Turbo 350 transmission to death during its life at 168,000 miles...the transmission was still shifting perfectly at sale time. The filter pan changes on the Turbo 350 at the time with this remote filter showed zero contaminants in the pan when I did the changes...I mean zero...no particles, no film on the inside of the pan..nothing. I have not used this remote filter since that time, but will be on the 300.
I am now aiming for about another 50-60,000 miles on the 4T65E in the GP...maybe I should add the remote trans filter..more "band aids" LOL
