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My Yukon XL 2500 has dual piston calipers all around. The calipers are all beefy and heavy. The rotor diameters are surprisingly similar to the 1500's. Mine are 12.8" front and 13" rear rotors. But there is more to a braking system than just rotor diameter. Newer Duramax trucks rated to tow...

Back in December 2015 I did a solo trip to Big Bend in my old Jeep - first a week in the state park, and then a week at the national park (and then a week in New Mexico). I originally was going to the national park first, but the state park would be closed the following week for public hunts so...

The biggest anti-GM troll here (should be obvious who) now has over 20 posts on this GM-specific thread. Do some people just have nothing but free time? The good thing is the people who actually venture out on the tracks and trails are generally pretty friendly and don't care what you are...

I have a GM (2003 8.1L Yukon XL) probably worthy of a build thread but making one is just a low priority for me. This site has picked up a lot of trolls the past few years and its not worth my time having to deal with them. Mention GM or IFS and according to some people my steering and front...

Damn! Glad you made it home safely with that. Have you checked for coil bind throughout the coilover's travel? If the spring compresses all the way and bottoms out the coilover will explode like that.

Sorry for the late reply, I am running Fox universal 2.0 remote reservoir shocks 8.5" travel. I'm running a little shorter travel then stock because I cut off the stock axle shock mounts and welded on higher clearance ones. That's also about as much travel as my rear leafs can reliably handle...

That's great but what does axle choice for a purpose built offroad rig have to do with a thread about GM's for expedition/overland travel?

An axle is only as strong as the application. Any idiot with a heavy right foot can break any axle. Google 'broken Dana 60' and you will get quite a few results. While a bigger axle works great for internet d*** measuring, there are vehicles of all sorts with "undesirable" axles doing just fine...

This is a universal thing. Lots of offroad-kitted Jeeps probably never see offroad, lots of people with HD diesel trucks probably don't need a diesel, most people don't need a 5+ bedroom mcmansion, nobody 'needs' steak or caviar, etc. Worrying about what other people do with their...

What is your basis for the 2500 being less reliable? All the GMT800 engines - 5.3, 6.0, 8.1 are all known for being exceptionally reliable with only a few minor issues to deal with. Just pick whatever power level you want. The transfer cases are the same apart from a different input shaft. 4L80E...

While this was on a different vehicle (2003 Yukon XL), I found a nice flat spot on the front floorboards with nothing behind them (the front outside corners), drilled some holes and installed Daystar firewall boots facing downards. As long as the wiring isn't too voluminous you won't notice it...

Just to add a data point. I specifically sought out an 8.1L 2500 truck (mine is a 2003 Yukon XL). A 6.0 would have been fine for me but who can pass up an extra 100ft lbs of torque :smiley_drive:. The 8.1L is thirsty but it is a monster engine, especially going up grades and climbing steep...

GM IFS (8 lug at least) is neither as complicated nor weak as people on the internet say. I have stripped my 2003 Yukon XL 2500's front end down to the frame, everything came out including the diff and every steering part and I replaced all wear parts (and much more). It was really...

I need to do a build thread on my 2003 Yukon XL 2500 but I've been too lazy and too busy with real world stuff. I also just don't get on the internet as much as I used to. But GM's are out there and being used, they just aren't the best platform for slathering in armorall and taking pictures in...

My original plan was to find a NP241 with a 3 wire signal switch as supposedly those have a 4-Low signal that I could use to ground the pin. The NP241 I found was a 2 wire case, so I bought a 3 wire switch hoping it would work in my case. Turns out the depth is all wrong on it and it wouldn't...

Thanks. I mulled over doing a SAS but decided to stick with IFS as most of the driving I do is highway and washboard gravel roads / forestry tracks with a few moderate wheeling trails thrown in. I am glad I stuck with it, it rides awesome over rough roads and is suprisingly stable and planted...

My truck (and 99% of Suburbans it seems) has the center console so I trimmed it to fit the shifter. I did have to cut, bend, weld a Z-shape into the shift lever to move the knob over otherwise it would rub on the center console. Didn't have any issues with the electrics, once you unplug the...

Did so much crap to it I couldn't even remember it all! Also add a custom aluminum roof rack with a shark fishing platform Replaced the entire cooling stack and added a 40k Trucool trans cooler with a 1990's 454 Suburban pusher fan

Need to do a build thread but here are some pertinent's: 2003 Yukon XL 2500 8.1L - current mileage 154,476 (just finished a 4,700 mile road trip) Front Suspension: Cognito 4-6 Fox 2.0 Remote Res Coilovers 6.5" travel with 700lb springs (a bit too light, gonna try 800lb next) Kryptonite UCA...

Actually a Yukon XL but close enough. Camping in the Book Cliffs Dinosaur NM-Echo Park Blue Mountain, UT Flaming Gorge