I'm in the process of getting the truck ready for vacation (~3500 miles round trip). Last year, with the camper on the truck and loaded to around 7650 lbs, some of the mountain passes were a little hairy.

I replaced the brakes before last year's trip, but even with all new stuff the braking wasn't all that great.
I installed Perfornace Friction pads on my Jeep a few years ago, and they made a noticable difference. I've also read numerous threads on here about upgrading to 3" shoes, so I figured I'd see if I could improve the situation a little.
After "breaking in" the new brakes, I took it for a short test drive. BIG improvement!

I still need to readjust the rear, but even with them a little loose it stops much better. Of course, I'm running empty right now - the real test will be once I get the camper loaded up.
It may not be as good as an exhaust brake, but hopefully it'll make things a little less scary going down Monitor Pass next month....
For anyone getting ready to do their rear brakes, here are a couple great tools that made the job easier:
Hold down spring tool
Brake spring tool
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1992 D250 LE: A518 w/Hughes converter, TFOD-Diesel shift kit, Flex-A-Lite under bed cooler. Old Smoky BHAF, 4" exh, 16cm, mild pump tweaks. 100k miles.
1998 Jeep TJ Sport: Lifted, locked, Tera-Low'd
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