Over on Basket's build thread the subject of transmission cooling came up, and it triggered a thought.
I run the old PSC dual cooler setup, the left side being for the tranny, and the right side for the steering.
Here it is in its current state:
View attachment 425326
It's always worked fairly well for me, but the memory Basket's thread triggered was that on two occasions in Moab during long uphill runs in high range, during an 85+ degree day, my tranny temp hit 220+ and touched on 230 for just a minute. It normally runs no higher than 170.
For Basket's rig,
@jjvw recommended the Setrab 53-10748-01 oil cooler for the tranny, which is what JJ runs. Blaine recommends this cooler as well. Compared to mine, it appears to be a much larger capacity cooler with larger fittings (all mine are -6). This is it:
https://www.amazon.com/dp/B07C64FTTK/?tag=wranglerorg-20
So I started thinking....
If I do away with this PSC setup to upgrade the tranny cooler, I also have to come up with another solution for the steering. I run hydro assist steering, and also hydro boost brakes, and with this setup in the past I have run the extruded aluminum style cooler and had bad over heating issues on two occasions - resulting in my steering locking up. As a result, I've not been a fan of that setup, and since I replaced it with the PSC setup above I've had no more problems with the steering.
@Apparition mentioned he is running this steering cooler setup from BMB, and it has worked well. JJ also runs this setup I believe.
https://shop.blackmagicbrakes.com/8...ar-Bracket-Hose-and-Fittings-8-COOLER-KIT.htm
One thing I noticed in the description is that Blaine runs all -8 returns with his setup, and as I mentioned I run all -6.
So, I called
@mrblaine to get some advice. We talked though my rig's situation and he said that his -8 TJ Steering Cooler setup would work just fine, and would likely work better than my current setup even though I'm having no issues. He did think that my running -6 return lines the last time I ran the extruded aluminum cooler could have contributed to my overheating issue. In fact, with my setup he was surprised that I had any steering at all when I was hard on the brakes - but that's not something I've ever experienced.
Blaine also told me the limited capacity of that PSC cooler when used for a tranny was the reason they stopped selling it.
And with that input, I ordered the kit. Blaine also said he would get me the fittings I need to install the Setrab cooler (which I also ordered - thanks JJ) and also a different fitting for the low-pressure connection coming out of the hydro boost. As usual, he was a great help and spent a good deal of time on the phone with me doing so.
So....squirrel. While I have the front end apart fixing the grille I'm going to update my tranny and steering cooling systems.