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It may be stamped on the axle housing. AMC did that with the AMC20. There's a thread on tags here: I never rely on axle tags. I've had enough axles open to know that what's on the tag isn't always what's in the axle. Especially with Jeeps. Always crack the cover and double check for yourself.

AMC 20 is not a C-clip axle. I do remember seeing something about them using the same brakes as the Dana 44. If so, all the kits should bolt up. But verify that with someone who actually knows.

Going from properly adjusted drum brakes to discs in my XJ i didn't notice any significant change in the braking power. Going from rear drums in typical condition, I could see how one would notice a big improvement. Rear drums, especially after decades of neglect, aren't performing as well as they should. If you rebuild and adjust them they will show a dramatic improvement. The reason I did the swap is because rear discs are so much better at staying adjusted on their own. And they are so much easier to work on. If you just want better performance, clean and adjust your existing drums. You'll be astonished at how much difference it makes.

I want to say it was more recent than that. But not by much.

I've been running my old 5 disc changer while I am working. I had forgotten how much I like listening to whole albums. This is some of their newer stuff but I've been listening to Fates Warning since Night on Bröcken was new.

I didn't have either of those problems.

I dunno. I have thought about a snorkel on my XJ just to be a functional ram air intake. I absolutely would never go mudding or fording any significant water. Besides, a snorkel is a cosmetic mod for 99% of the people who install them.

Links for Rock Auto parts. DANA 2480911X DANA 5153X

Yes. Dana 44. All rear axles used the same u-joint so just get one for the rear and you're good. I would recommend Spicer brand for both. You can get them from Rock Auto I believe. Decent price and as good or better (sometimes way better) than other options.

Dorman 610449 lug studs work perfectly. You can get them just about anywhere. I picked them up from Rock Auto.

They pipe all of that for rear AC/heat?

Do they work with factory plugs?

Double check at the battery terminals with a good voltmeter too. It may be your gauge is off.

May be that your alternator is actually shot as well.

Doh! Thanks for all of your hard work.

I have their kit on the 44 (from an 88) in my 2001 XJ. I put them on when I did the swap. It's a good kit. Works well. I got the matching parking brake cables. Bolts right on. 2 things. 1. The wheel studs on the stock axle are too short. I got some longer studs from Rock Auto and they work great. I can dig up the part number tomorrow. 2. A lot of 15" Jeep wheels don't fit. I tried several. They all rub just a hair. I swapped in some 16s and new tires and they fit perfectly. It might be possible to clearance the caliper but I didn't want to do that.

You know you want another one. All the cool kids are doing it.

I bought some parts from this guy. He wasn't done with the truck when I saw it but it looked pretty good at the time.

The 4.0 is a speed-density system. It injects fuel primarily based on the speed of the engine and the density of the air inside the manifold. The O2 sensor just adjusts trim. If you open up a vacuum hose, the vacuum in the plenum will drop. That will cause the engine to react by injecting more fuel. It may try to compensate by closing the IAC but you can only close it all the way. Once the IAC is fully closed, it can only compensate by adding fuel, raising the idle.

Last 3 are flipped.

They all look right to me. Does everyone else see them right side up?

I took 4 pictures on my Pixel 3xl. Same spot, all 4 orientations. Loaded from Chrome on Android. Let's see how they load.

I run Chrome on Android and don't seem to have the problem.