Automatic Transmission Cooler
The 86 Trooper with the Chevy V-6 has been sold again. My son bought it back from my daughter, but he has no way to get it to his new duty station in Fort Drum NY. So guess who gets to tow it from Jackson Ms. to Fort Drum NY?? Yep, me and Troopersaurus.
Towing a trailer or in this case another Trooper on a car dolly is VERY hard on an automatic transmission, so I decided to install a transmission cooler. After shopping around I purchased a
I am not endorsing this brand, nor have I received any compensation from B&M. I selected this cooler for it's shape and mounting brackets.
Here is where the cooler is mounted. It's not the ideal location. With the locations of the auxiliary electric fans, and the transmission oil lines this turns out to be a good compromise.
It's bolted to the body in 3 places. The kit comes with attachments that are supposed to feed through the fins of the AC condenser, but my local radiator guy is VERY adamant about not using those type of connectors. He says they damage the Condenser, or Radiator, which ever they are used on.
The only upper mount uses a factory mounting point. I used 2 oversized nutz as spacers and a longer bolt. I know, using the nutz is sort of cheezy, but what the heck, they provided the exact spacing I needed. :)
A Lower mount. I used a self-tapping screw and some rubber washers for spacers.
The other lower mount uses a section of strapping, another self taping screw, and a nut and bolt.
Here is part of the reason I mounted the cooler here. There is a really convenient place to route the cooling lines.
Here is are the new lines coming from the front, and the the stock transmission cooling lines.
Here the external cooler lines are connected.
You can just barely see the hose clamp for the coolant hose. The cooler is blanketed by the bumper and the front receiver hitch, but it's the best location I could find for my application. It should still benefit from the ram air effect of the lower louvers in the bumper.
Does it help??? Beats me, but we did take Troopersaurus to Phoenix on the hottest day this year 100+. On the way back there is about a 3000 ft climb on the freeway. The signs on the road recommend turning off the AC to prevent engine overheating. I went up that hill as fast as it would go, with the AC on, and the temperature was just a little warmer than where the thermostat opens. It was a fairly inexpensive easy modification to make. If it increases the life span of the transmission then it was well worth it.