@Joneskvn
CONGRATULATIONS!!
If both chassis (88 BII and 92 Exp) were 4 wheel drive, then the engine, transmission, transfer case, front drive line from D35 (axle) and rear 8.8" (axle, moving the spring perched to top of tube and shocks mounts) including front and rear complete suspensions are bolt on. The rear drive line from the Explorer must be shortened to work, that is what I did.
You will need the complete interior and engine bay wire harnesses, the PCM, the BII RABS can be used or install the Explorer's complete antilock brake system (I kept the BII RABS). The wiring for the lights is the final decision, I repurposed the BII's but recommend using the complete Explorer light wire harness (engine bay, interior and rear + all external lighting) too, for simplicity.
Of the auxillary components, most are reusable BUT all BII pulleys are "V" and it uses 3 belts while the 4.0l uses a serpentine which is grooved
• the brake master cylinder require different size line fittings
• the power steering pumps use completely different line fittings
• the 4.0 intake ducting and air box are different
• I chose to use the entire Explorer heating/AC/ducting, bolted right on
Please consider carefully your options in the cab, there are 2 distinct paths:
1) keep the original dash/column/AC/ducting and demonstrate your electrical expertise
2) incorporate the Explorer dash/column/heater/AC/ducting and controls...demonstrating your sheet metal and fabrication skill
I chose #2 as I needed to repair firewall, wiring and dash damage. It makes for a great opportunity to repair any floorboard damage while at it.
Regardless of all that, the floor shifted transmission and 4 wheel hi/low can be used if you keep all the BII mechanical linkage; otherwise you will need the 4.0's column with tree column shifting for the transmission and all the electric shift mumbo-jumbo for the transfer case.
NOTE
1- Incorporating the Explorer column will go better with the 4.0 dash and is moderately challenging. The 4.0l column is shaped different where it penetrates the firewall and the dash is hung from several different locations.
2- one bonus to using all Explorer is it will be at least 4 years newer than the BII's.
3- Another consideration is the gearing. Depending on your plans a 2.9l running 33" rubber at highway speeds likes 4:10 gears while a 4.0l running 33" rubber at highway speed prefers 3:73.
4- I recommend using at least the 4.0l exhaust with minimal alteration
5- the Explorer axles require the Explorer flanges, which are simple to swap over. Noting again that the rear drive line will need to be cut down a little.
6- the fuel system is another issue as the 4.0l using all hard lines with different fittings. There are plenty of choices here. Because I was in a hurry, I used the complete Explorer fuel system with the BII rear 23 gallon tank needing only to lengthen the 2 fuel lines about 2 feet. The fuel pump is another decision, again, I was in a bit of a rush so I just popped the 4.0l.fuel sender into the tank to get on the road. This problem that creates is that the angles of the two sender units are different: a BII sender will reach the bottom of the tank but need different fittings, the Exp fuel sender will only get you approximately 18-19 gls of fuel, as it is not angled correctly to empty the tank.
7- the D35/8.8" will move your wheels out at least ½" on each side, a good thing for improved BII stability
Any questions feel free to ask in your thread or PM; I have many pics of each stage except the axles which I did years prior to incorporating a 94 Explorer into my 87 BII.
