i made the same kind of a thread over on jeepforum.....here is the list we compiled
Suspension & Lift:
1. ZJ V8 Upcountry Coils = 1-1.5" lift
2. F-150/Bronco Coils ('70s-ish) = 4-4.5" lift
3. S10 (P/U or Blazer) leaf packs (cut eyes off S10 main and bolt pack under XJ main) = 3-4" lift (may require use of degree shims)
4. Dakota Bastard Pack (do same as with S10 pack) = ~4" lift
5. JK shocks = slight mod to fit 2-4" lift (some dispute)
6. MJ Shackles = 1/2" lift
7. Camaro Spring Isolators = 1.5" lift
8. Full size Blazer Bastard Pack (do same as S10 pack) = 4-4.5" lift (may require use of shims) may be stiffer than S10 leafs
9. ZJ spring isolators = stronger, metal core, can be stacked
10. GM fullsize pickup shackles ('95-99) = 1.5" lift, better shackle angle
11. Thunderbird Front Coils ('83-97) = 3-4" lift (varies in lift and softness by year and trim package), will need top plate from strut too
12. Any 2.5" wide leaf spring can be used between to make a bastard pack (they may differ in stiffness and lift)
13. S10 Shocks (Rear only) = good for the lift you will get when you do a bastard pack
14. TJ Lift Coils (front only) = provide 1" less lift on an XJ than on a TJ
Brakes:
1. WJ brake booster
2. WJ Master Cylinder
3. YJ Brake Lines = 3-4" longer
4. Dodge Ram Van Brake Lines = 10-12" longer (for big lifts)
5. WJ Rotors/Calipers = bigger brakes and more stopping power (will fit 15" rims)
6. ZJ brake booster, master cylinder, proportioning valve = may need for disc conversion
7. XJ '95+ brake booster and master cylinder = dual diaphragm
8. Dakota Rear Softlines ('95-00) = 6" longer
9. GM C/K1500 Front Softlines ('90-95) = 6" longer
10. KJ disc brake set-ups can be used for a conversion on your XJ axle
Axles:
1. Ford 8.8 inch ('97+) = need spring & shock mounts (3.55, 3.73, or 4.10, maybe LSD, Disc Brakes)
2. XJ I-4 & some V6 = may have 3.73, 4.10, or 4.56 gears may have vacuum discos
3. XJ C8.25 ('97+) = bolt in and upgrades to 29 spline (strength comparable to D44)
4. XJ D44 = found in some but not all '87-'89 XJ's with Towing Package
5. Lincoln Lockers = welded spider gears, operates like a spool, must be a GOOD welder
6. MJ D44 = need new spring perches and shock mounts
7. XJ D30 = ('95-'99) non-disconnect, larger u-joints, high pinion, bolt in
8. Homebrew posi-locks for '84-90 vacuum disconnect D30s, eliminates vacuum actuation (use search function)
Front End & Steering:
1. ZJ V8 Tierods = beefier & bolt in
2. WJ Knuckles/Tierods/Draglinks = beefier and crossover steering
3. Durango Steering Box = beefier
4. 350 or 351 Power Steering Pump = helps with oversize tires (requires welding)
5. WJ LCA's = more tire clearance (some grinding required)
6. ZJ pitman arm = 1 inch drop over stock
7. WJ rear LCA's = replace XJ front LCA's, 2" longer to accommodate a lift, some grinding required
8. WJ power steering pump (fits '96+, plug return hole, and use XJ pulley)
9. V8 ZJ front sway-bar
10. JK rear UCA = use as XJ LCA, its about 1-2" longer
Engine/Transmission/T-case:
1. Newer XJ intakes (may require some modification)
2. Mustang 5.0 Injectors = near bolt in (have 4 holes instead of 1, more fuel, better spray)
3. ZJ V8 alternator = more power to run accessories (some grinding required) 136A
4. Ford Electric Fan ('90-95 3.8L Taurus, '87-93 5.0L Mustang) = replaces mechanical fan, more cooling (8C607)
5. 2.5L Dakota Alternator = bolt in, upgrades to 117A
6. Dodge Neon Injectors = better throttle response
7. '94+ V6 Dakota AX-15 = bolt in (but must use XJ bellhousing)
8. ZJ and WJ stock tranny coolers with stacked plates (even an upgrade for us with the stock fin style)
9. 5spd crossmembers give 3/4 inch t-case drop on autos with no loss in ground clearance
10. Hoodvents (i.e. Lebaron, Laser, Turbo Thunderbird etc.) = help keep ur 4.0 cool at low speeds
11. You can convert the closed system to open without replacing your radiator by using the fill cap from a 4.7 durango or dakota, cutting it into your upper hose, and replace your bottle with an MJ overflow tank or any that fit. Then cap off or eliminate the T'ed lines in the heater core.
12. Homebrew Slip Yoke Eliminator (use search function)
Body/Interior/Armor:
1. 97+ mirrors are direct bolt in to older XJ's and allow you to fold them in on tight trails.
2. MJ/2 Door XJ Bucket seats = tilt forward, bolt in
3. ZJ gas tank skid = can be modified to fit 97+
4. GM power antennas replace your broken XJ's with little modification
5. XJ '97+ doors onto older cherokees = one piece windows and better mirrors
6. XJ overhead console = most commonly found in '00-01 or higher trim level, provides space for switches etc.
7. '97+ center console = can be made to fit '96 and older, gives you cupholders!
8.'96-00 Ford Explorer hatch shocks = lift your hatch about 3" lower but are beef (ever see one that doesn't work?) need modification for '97+
9. OEM skid plates (Front, Tranny, T-case, gas tank, found on "up-country" package XJ's)
10. OEM swing-out tire carriers, get the bumper with it, found mainly on '84-'90 XJ's
*feel free to ask questions about any of these mods
**Also Blazin Den has made a list of links to build threads for us!
Recap with Links!
***Here is the Link to the thread on Jeepforum.com where most of this info came from
Budget Builds: What Junkyard parts will fit an XJ?
