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88 Bronco II + 93 Explorer = Short and powerfull

Diff Whack Daddy

And the Roll Over Posse! Under the Hood Moderator
Elite Explorer
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Joined
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City, State
Mount Vernon, WA
Year, Model & Trim Level
1st Gen XLT 4dr
Callsign
KG7VTT
First off, don't start yelling at me about pictures yet. I will get them up soon. Last year I got a good deal on a BII and I was just going to lift it and call it good, but then I got an even better deal on a 93 Explorer that met it's fate with a ditch and bent the snot out of the passenger side TTB. So, for a combined total of $1100 for both vehicles, I have a project :thumbsup:

The plan is basically simple. Strip down the BII to nothing but frame, body, and seats. Yep, that's right, I did not include dash, steering column, axles, or wiring. All of that will come from the 93 Explorer. Basically, the 88 BII shell will be gutted and built stronger, faster, and better than it was before, just for much less than ol" Steve Austin.

So far, I have both vehicles stripped down and 3 different piles of parts. Need, don't need, and might need. I have a one last thing to take off the Explorer, and then it's off to the crusher :(

The BII has already received the newer A/C controls and inner(under dash) and outer assembly(under hood) and is currently waiting to have it's firewall modified to accept the larger diameter steering column of the Explorer. I had to wait to get the Explorer on the trailer before I removed any of it's rolling or steering capabilities. I cut that section of firewall out of the Explorer firewall and will use it as a template and a bolt backing plate.

I scored a manual 1354 t-case for $50 and have already replaced the electric 1354 on the tranny. I had no idea how hard it would be to find the gasket that goes between the tranny and t-case.

Going this route makes things a little more time consuming in the beginning, but all that time is made up in the end when the wiring harnesses just plug back into each other rather than spending days chasing wire colors from two different Chilton's manual and pulling your hair out a crying yourself to sleep, er... Sorry, I was having flashbacks of 90ranajos ranger.

I have found a couple of snags that will require a little bit of splicing of wires and a small issue with fuel delivery. The headlights and tail lights will have to be spliced into the Explorer harnesses as they are different connectors. The two doors will also have to be spliced if I wast the power windos and locks to work. The other snag was fuel delivery. The 88 BII's use two fuel pumps, a low pressure lift pump in the tank and a high pressure on the frame rail where I am used to seeing a fuel filter. There is also some weird round oil filter looking unit on the frame between the tank and the high pressure pump. I have no idea what it is or what it's purpose is except that it is not electrical and it is not the filter cause that is located between the high pressure pump and the engine. Whatever it is, my solution eliminate it as I will use the Explorer fuel lines to make the span down the frame rail. From there I will use Dorman repair kits I found on rockauto toattach to the tank sending unit. The tank sending unit will have it's pump replaced with, yep, the explorer one. It needs to be modified ever so slightly to get the larger pump to fit, but I've already made the measurments and am sure it will work just fine. I will also have to splice there as the 88 BII used a different connector for it's fuel sending unit. So long story short, I have a few splices to do, but there all simple 12VDC circuits that aren't being monitored by 3 different pins on the PCM.

I'll get pics of the progress as soos as I can.
 



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:ttiwwp:

Oh wait, I might have some:p:
 

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that weird round thingy you speak of is supposed to be a fuel filter housing. this is what a Ford Parts guy told me at the dealership. late in the '88 model year they began putting it in supposedly for the '89 model year. he didn't have a part number for the actual filter.
what is really weird is my '91 explorer has the identical fuel filter as my '88 on the frame rail upstream from the high pressure pump.
it is a pain having 2 fuel pumps. apparently the '89's have only 1. i've considered swapping to 1, but my bll is now semi retired and left sitting out back only being used to clear snow. (death rattle in the lifters). i'm tempted to pick up a first gen ex. for a parts vehicle for my bll. i've owned it since new and sending it to the scrap pile would be difficult.
 






I will be switching to one in tank pump, using an Explorer fuel pum and a slightly modified fuel tank sending unit. I have to cut about 1 inch of the tube that connects to the fuel pump to make room for the larger pump. I will use the explorer fuel lines and filter to run down the frame rail and then a Dorman repair kit to hook up the tank. This will allow me to use all Explorer wiring and limit any weird fuel connections and possible leaks.
 






89-90 bii has a single pump and fuel lines, would make it simple for you, or you can modify the 93 lines you have I am sure!!

This brings back so many memories :) My BII was 88 Eddie Bauer too, if I only knew then what I know now, I would build it JUST LIKE YOU ARE!!
explorer parts in a BII = overbuilt!!

Looks great so far!

the round thing is a water seperator LOL Mine has 300K miles on it, works just fine as far as I can tell, I never touched it!


do yourself a favor and ditch the RABS module also, that sucker is a PITA to get the rear brakes to work properly, you can just remove it and plumb the two hard lines together with two simple adapters....make sure your 88 brake booster is the large one also, otherwise the 93 sploder is a bolt in upgrade...
 






I'm in! :D:thumbsup:






Jeff - :navajo:
 












410, coouple of questions for you. Is the RABS module located on the frame rail near the rear axle? Do you happen to remember the size of the two adapters needed to bypass it? Can that water seperator thing handle the higher pressure? The original pressure on it was 4-6 psi coming from the in tank pump. With the Explorer pump it will be up to 80 or 90 psi.
 






1988 is EFI and high pressure, I am still using my 1988 dual pumps and stock 88 lines/filter with my 98 V8 engine

yes it can take it

I have no idea what fittings they were, but I can dig up a picture! yes the POS RABS valve is on d side frame rail just in front of the rear axle

4-6 psi?? 1984 and 85 were carbed, all 86+ are EFI and should have 80+ psi LOL
 






Correct, but the in tank pump is a low pressure lift pump, and the pump located on the frame rail is the high pressure one. The fuel seperator thing is before the high pressure pump, so it's only seeing that 4-6 psi from the in tank pump.

I guess it's kind of a dead point since I plan to run the Explorer lines all the way back to the tank bypassing all the BII stuff.
 






pssst if you go buy a new in tank boost pump, you will get a high pressure pump, basically my truck has two high pressure pumps in line........boost pump go bye bye years ago
 






Deff subscribed :D

cant wait to see/hear about the results lol
 






I can see it now...this is one of those threads we're I'm going to feel dumb for getting rid of that '88 B2 I had for a bit:rolleyes:
 












I DON'T regret getting rid of mine :D
 






I couldnt get rid of mine if I wanted too! LOL it can have only one owner, anyone else would be like WTF am I looking at here?

Past the point of no return years ago!!!

BII = awesome, they are like $300 now for a decent builder, why get rid of it? not worth much... just throw $10K at it and make it nice :) dont do like me and take 12 years, 4 suspensions, and 7 transmissions, thats expensive city!!
 












I couldnt get rid of mine if I wanted too! LOL it can have only one owner, anyone else would be like WTF am I looking at here?

Past the point of no return years ago!!!

BII = awesome, they are like $300 now for a decent builder, why get rid of it? not worth much... just throw $10K at it and make it nice :) dont do like me and take 12 years, 4 suspensions, and 7 transmissions, thats expensive city!!

At the time, no tools, no time, no job.

Besides, if I didn't get rid of it, Kevin wouldn't have it now.

The front suspension has already been on Rick's rig and Arsouls rig.
 



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Well, I got a lot done this weekend. Finished stripping out all the wiring and fuel lines that I didn't need out of the BII, and then the fun began.

I started out by running the explorer fuel lines from the engine bay all the way down the frame rail. The Dorman repair kits were 18" long which was just enough to make up the extra distance to the rear mounted tank. Modified the in tank sending unit by cutting about 1" of the output steel tube to fit the Explorer pump, spliced in the Explorer connector to the wiring, and bolted everything back in. . Fuel system, check.

While I was down there though, the rear brake hard line started leaking at the union to the rubber hose. That's okay though since I will just replace that when I bypass the rear ABS module.

Got the firewall modification done(larger opening to accept the column shift steering column) and the steering column mounted and hooked to the steering box.

Dropped the motor in, put the trans in, modified the tranny crossmember to accept the A4LD mount and attain correct engine allignment. I had to drill one hole casue the exhisting holes had the rear of the motor and trans kicked toward the driver side. Hooked up all tranny wiring and linkage, even the kickdown cable, and installed the manual 1354 linkage and shift handle.

Next up, install all the explorer wiring harness, splice in the lights, install the tranny cooler and the radiator.
 






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