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LM4 5.3L and 4L60E swap into 2004 LJ

LBarr2002

LIFETIME
SUPPORTER
I finally put the Rusty's radiator skid back on. The Moab Must Do list is now complete... :(

It fit fine with the Superior radiator, I just had to bend the hard section of the power steering line a little to keep the rubber part from rubbing a sharp edge on the bottom of the radiator.
 

LBarr2002

LIFETIME
SUPPORTER
I finally did some careful measuring after talking to @matth_85 about the AC bracket on his Camaro. The low mount Dirty Dingo hotrod mount would fit between the frame, but the upper control arm would hit the tensioner assembly with just a couple inches of up travel. So, I'll be using the Dave's high mount bracket I have.
 

LBarr2002

LIFETIME
SUPPORTER
Tripp and I did some pressure differential testing on my jeep and compared to his today. Results show the under hood pressure increases with speed, and similar results with both our jeeps.

20200703_171243_resized.jpg

With the Moab trip coming up, I don't really want to take any chances on the fix for the running hot. I plan to do everything I can to bring temps down and hope that some or all of it helps. I'm going to remove the fog lights, do a remote trans cooler, and vent the hood.
 

LBarr2002

LIFETIME
SUPPORTER
Made the first step in cooling upgrades today. I probably wouldn't have cut a straight hood, but since it was already bent...

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I decided not to use the 2 longer vents down each side because they would be directly over my GM ECU and the fuse panel. I may get the smaller rectangle ones that go between the windshield bumpers and footman loop.
 

LBarr2002

LIFETIME
SUPPORTER
I messed around with the little power steering cooler the other day and couldn't come up with a way I liked to mount it or run the lines, so I ditched that for a Derale 13260 dual pass heat sink style cooler. It sits on top of my radiator skid plate like it was made for it.
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And Tripp and I got the trans cooler mounted, wired, and plumbed.
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Side note, if you don't already have yourself a dedicated garage flavor injector needle, you need one. I recommend the OXO good grips.

https://www.amazon.com/gp/aw/d/B074GD57XY?psc=1&ref=ppx_pop_mob_b_asin_title

This makes pulling fluid out of reservoirs (brakes, power steering) and topping off those hard to reach items (tcase, diffs) a breeze.
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