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Most any universal H-4 headlight harnesses will work. I bought one on Amazon. Hella makes a good one, so does Susquehanna Motorsports.

My 1998 has +290,000 and the original injectors, except for two that cracked, and were replaced with junkyard parts. If the injectors aren't broke, they don't need fixing.

These numbers are a starting point, adjust as required.

1997-2001 a replacement/junkyard ECM/PCM with the same Part Number can installed without flash memory re-programming with two related EXCEPTIONS. 1) If the XJ in question has the factory installed SKIS/SKIM anti-theft option, remove the Chip-in-Key reader device before installing the donor...

Any XJ would be a donor for good metal. A few years back I bought a complete rear 1/4 panel with the frame rail plus 12 inches of roof and cargo floor to use as parts for a crushed rear 1/4 panel. I think I paid about $250 for the parts.

A large number of planned upgrades were implemented throughout the 1996 model year manufacturing. Older revisions were installed until the parts ran out, and the production line implemented the new revision parts in their place. Everything got used up, nothing got thrown out. Early 1996...

Coil rail failure is rather unlikely based upon the symptoms described. However, there are some basic coil rail testing that can be performed.

Test the OBD engine sensors and O2 sensors. Testing is simple and only requires a $ 6-15 volts/ohms multi-meter. Check the Camshaft Pickup Sensor synchronization. 2000-01 Jeep Cherokee that sputters while driving - SCAN TOOLS, O-SCOPES AND TOOTHPICKS

If the 1997-2001 dashboard gauge shows 19 volts, there is typically a connectivity problem in the charging system. Look and test for: a bad ground, a loose connection, chafed or melted wire insulation, a corroded connection, or internally corroded wires. If the 1997-2001 dashboard gauge shows 9...

This may be a good place to start your research >> https://naxja.org/threads/everything-you-ever-wanted-to-know-about-the-aw4.1053970/ I just bought a Dealership AW-4 Service Manual on eBay for my model year Cherokee.

I have read good things about Zone products but have no personal experience with them. My Rubicon Express full-length AAL is alive and well underneath XJ number three. Iron Rock Off Road is local to me and they are very helpful on the phone and have quality products. I have no connection...

I prefer speed-bleeders.

I met a guy that built an XJ width D44 front axle from two junkyard axles. I don't remember the specific details, but he used a D44 with the correct diff location and short axle tube length, found another one with the correct length long axle tube, cut them both apart, built his Frankenstein...

With that many miles, worn shift fork tabs or even a worn/damaged shift fork are likely suspects. If you remove the 242, plan on a thorough refresh of the shift fork, seals, and possibly bearings. A 231 of similar vintage, and matching rear driveshaft, would allow daily driving while you look...

At 3" of lift and 31's, the best upgrade was locking differentials. Skids, diff armor, and rock rails are basic essentials.

Riding low by eye, or riding low by measurements to a fixed hard point ? Coil isolators and spacers come in many sizes, and a stock XJ Cherokee leaf inserted into a leaf pack will re-arch the leaf pack a very slight amount. You probably could swap the OME leaves from side to side to level out...

No Bosch O2 sensors, only use NTK. Many 4x4 Forum threads detail the Jeep 4.0 and Bosch O2 sensors not playing well together. The stalling, rough start, clicking, no idle/poor idle symptoms point to low voltage. Suspect lack of charging or poor quality wire connections. Were the...

Water outside is from the cowl drains. Common interior water leakage points are: windshield seal door fitment/door seals plugged cowl drains deteriorated seals at heater box and blower motor loose or damaged firewall grommets dried out seam sealer at the fender to cowl hood hinge gaskets...

The stock control arms are are surprisingly robust, their design allows for a bit of flex if necessary, but they snap right back. My 98 has +284,000 miles on the stock leaf springs, an Add-A-Leaf plus an extra stock XJ leaf inserted into the leaf pack fixed the slight sag and gives it 3" of lift.

Typically at 2-3 inches of lift an SYE is not required, and longer lower control arms will be optional, the stockers should be fine. Each XJ is it's own universe, so you may or may not want a transfer case drop. At about 3 inches of lift longer lower control arms will be beneficial.