Clifford's Big Red Build Thread
I put some antiseize on the caster shims to make them easier to get out if needed. These are labeled 0-5. Not sure what that means.
Axle assembled
Too close for comfort
See anything wrong here??
The plans are starting to come together for the Cummins swap but I keep coming up with other items that need work or I want changed. Figured I’d start a build thread to house it all. The kids named the X Clifford when I first got it. So, here goes:
During the research period for my Cummins swap I came across this forum and really enjoy spending time reading about other ideas and mods to do for the X. From there, it sort of bloomed into this giant list that I have neither the time or money to do all of. So I’m trying to come up with a definitive list of mods/updates/fixes that I can actually manage getting done in the time I’ve allotted for myself. So, in no particular order, here are the items that this build thread will consist of:
Cummins swap with a ’94 p-pump bus engine (engine to be rebuilt as well during this process)
NV4500 transmission with PTO coolers, short shift tower, and using existing NP273 transfer case (with the goal of keeping my electronically controlled 4WD)
Driveshaft modification for the above
Powerstop brakes and steel braided lines
Update the trailer hitch to a Class V (not settled on this yet)
New springs – I haven’t settled on the actual method or springs but likely I’ll go to a local spring shop and have them make me “X Codes” that are the same dimensionally as the factory X springs. In other words, I want the same ride and height but with higher carrying capacity (if that's possible)
Remove and grease front hubs (needle bearing and sealed bearing)
New u-joints for every shaft I touch
New shocks (likely stick with the KYB monomax I currently have and dependent on spring selection)
Mechanical pillar gauges (EGT, ECT, EOT, Boost)
Rear clips for seat backs instead of the Velcro
Soundproofing the entire inside
Sandblasting and undercoating/painting entire vehicle undercarriage
Sandblast and paint bumpers/grill/running boards black (maybe)
Remove cladding
Front and rear differential fluid changes with new rear cover (not settled on the cover yet)
Door rust fix (front doors, the others seem to be fine so far)
New touchscreen radio (had a Pioneer that had known issues (found out after the fact) and they wont touch it – not sure what direction yet)
Toolbox for the rear - planning on making a wood box to fill the back cargo area, roughly 6-8" high, 2 drawers with full extension slides
I think that’s it so far….we’ll see if I add to this list over time. Why a cummins swap you ask? Well, with 264000+ on the clock right now, it’s time. The 6.0 has treated me VERY well so far and I have only one complaint: towing. Just got back from a camping trip to the UP. ~1400 miles of fighting. We were loaded pretty heavy as far as “Stuff”, but well under the maximum towing capacity of the vehicle. I’d say (guessing) that we were right around 8000 pounds total trailer weight. With the AC on, I could barely hit 60mph on flat ground (so everybody cooked in the car). EGT’s were consistently over 1000 and temperature hit 225 at one point. I also want the reliability of the Cummins. If I build it correctly and don’t try and throw a ton of HP and Torque at it, it should last me a good long time. Manual transmission is because I want one. I’ve looked that the 6 speed varieties and just can't justify the extra expense for the extra gear in the middle (I may eat those words one day). The other main reason, is just to do it. It’ll be a good project to do with my dad and there’s not that many of those left. I’m also keeping the factory gauge cluster working completely, with cruise control as well.
As I do this build, I’ll document all the trials and tribulations (as I know there will be) and costs to do as well (at least what I pay for each item and where I get it) with the goal of helping someone else out as I’ve been helped by this group of folks.
Destroked (among others) is in fact a pretty decent source of purchased parts for this type of swap. For me, the juice is in figuring it out and making things myself. I would say that this started about 50/50 wanting a Cummins/doing the project. Now it's more like 85/15 doing the project/wanting a Cummins. Doing this with my dad who is getting up in years and can't physically do this stuff much any more is worth every penny of parts and every hour spent researching and figuring things out.
https://www.ebay.com/itm/163692969023
I was a bit flabbergasted at the price. Normally these are around $300 for a set. I paid less than what the guy has them listed for now (about $125). the "does this fit your vehicle" filter on ebay said that they wouldn't fit, but I checked Warn's website and they are the correct part number. Free returns if they don't. So, that set me to searching around for a NP271 transfer case, as I had already sort of decided to go with a manual shift lever and modify my NP273 to accept the linkage. Local junk yard has a 2000 F350 with a NP271 and linkage and all. Headed over there Sunday morning to pull it all out and was only able to get the shifter. Driveshaft bolts are their usual pain to get out and even with proper sockets, breaker bar, hammer, cordless impact I couldn't get them to loosen up. Still trying to figure out how to sneak a torch in there. I'll get it next time, provided it's still there. Walked around a bit, and I'll be darned if there wasn't a 24V cummins truck right across the lane. Someone had pulled the badges off the side of the truck and closed the hood. I think they were trying to hide it. So, I got to work stripping some parts off I need or might need. Got some intercooler tubes, AC compressor, mounting bracket, dipstick (don't see those around much), Alternator and bracket. I'll have to go back as the fan was in perfect condition but couldn't get it off (knew I should have brought that 24" crescent wrench). Also couldn't get the dip stick tube out. Crossing my fingers it's all still there when I get back to it. I also was able to find some seat back clips out of a Expy for the X. Score all around!!
Saturday, I was able to finish up the brakes on the front axle and get it mounted under the truck. Old u-bolts worked fine for the passenger side, but just not long enough for the drivers. I'll go ahead and order up some proper bolts and put them in next time. Sandblasted, painted, and rebuilt front calipers this past week in prep for that. Boy was that a chore. The scale and junk on those things was obnoxious!! Unfortunately, I didn't get to take after sandblasting pictures. They cleaned up real nice, but it took several iterations and a lot of time. From there, I fired up the steam genny one more time to hit my carpets. The dirt rolled out pretty good, but the stains aren't gone. I finally found something that the steam genny wouldn't just clean. I'll go back at it next time with some simple green or other cleaner (maybe even dawn dish soap), a scrub brush, and then the steam. We'll see how that works out. I think I'll switch gears to the interior next so I can get most of it set up and get some parts back in the X. I'll have to get my F650 lower dash drilled and painted and the gauges installed so I can go ahead and run those senders after I drop the motor back in. With any luck that everything still matches up well enough, I'll go ahead and measure for driveshafts. I sure as heck don't want to get caught ready to start and not be able to drive!! Of course, I'll have some camshaft break-in and valve lash to hit before I actually drive it down the road, but I want to be ready!
Other considerations still up in the air....
Need to make a decision on tire/wheel setup. At this point, I don't really want to spend the cash on all new stuff, but the tires look pretty dinky. Still not sure I'm happy with it the way it is (other than not having to spend the money). Likely what I'll do is watch CL and FB for a set of 18" SD wheels and then figure out a tire I like. I don't want spacers if I can help it at all. That leaves me either the 18" SD wheels that work or aftermarket wheels. Backspacing and offset are currently wearing out my brain. Once I get the NP271, I'll obviously go through that rebuild again too, using the input shaft I got for the 273. With that, not many pictures, but here's a few!
Almost forgot to put these in. Found them in the brake parts box.
Axle ready to go in!
Current ride height. Tire/wheel combo seems small.
The front will drop with the motor in. Not sure how much.
Lots of room for activities!
So clean and purty.
Dirty carpet
Lots of "stuff" from the kiddos
One pass got it partially there. Still not happy.
Pile O parts from the Cummins. Hopefully the AC pump will work (fit) correctly.
Ford Trucks for Ford Truck Enthusiasts

I was able to order my front u-bolts yesterday as well. Stengel Brothers again. They have a "custom quote" option on their website and the owner got back to me in like 30 minutes via email, corrected my mistake in diameter, and gave me a link to order. 30 minutes after the order, I got confirmation that they were shipped. They are located in Whitehall, PA and I expect I should have them in a few days. Great service from those folks. They have a whole host of other stuff you can buy. I purchased the rears from them back when I did that. Summit racing sent me the incorrect u-bolts, so those are going back. Stengel was good on pricing as well.
As Larry the Cable Guy would say, "Git-R-Done"!!!
Pictures are at the bottom of the thread:
https://www.ford-trucks.com/forums/8...n-build-5.html
I'll investigate this a bit more through this week. I pulled the shift motor and housing off last night and the stub out of the side of the transfer case fits a 14mm open end wrench fits right on it. I was also able to rotate it without issue and I think I even found neutral.
So, once I realized that, I went on to the Cummins and started getting accessories bolted on. I was able to install the flywheel, clutch, and pressure plate, along with the starter and mocked up the PS/Vac pump. I need to get my P-Pump put together and on the motor to make sure I get the PS/Vac pump bracket on correctly. Also, I need to dig up all of the oil feed fittings for everything and get them cleaned up for install. I've been debating on whether or not to have my pump rebuilt (Which, even the folks at Industrial Injection haven't called me back about a rebuild), finding a used pump, and buying a reman unit from Rockauto. I'm gonna at least give this old 230HP RV pump a go and see what happens. I've got a bit of cleaning to do as the DVs have junk and rust on them. Rust isn't bad except for #6, which I think I can get cleaned up. At this point, I've pulled them all, cleaned them up, and bagged them individually with oil in the bag to keep them from rusting again. I'll then clean out the barrels really well. Also need to install the Tork-Tek Adjustable OFV, #10 plate, drain any oil that's in it, install the DV's and paint the pump. I'll also put it to factory timing on the bench prior to install. I'll bump the timing to 16 degrees once I install it on the motor and I'm going to attempt the method described in the FSM. There are "easier" methods out there, but I'd like to learn this one for future reference and use. I'll also get the items together for the fuel pressure gauge and hopefully get that started plumbed in. The goal next weekend is to get all accessories bolted to the motor and installed fully (transmission included) so I can give it one final paint and install it in the truck. Presumably, I'll have fixed my wire harness by then. If not, I'll have to get it done before I put the motor back in.
So, good and bad this weekend, which is par for the course.
Used this to paint my seat back clips
Interior finished and ready for seat install.
Seat back for the clip install. Carpet comes off pretty easy and you can see the indentation in the plastic.
Template for the cutting. I undersized it a bit so I could trim to fit perfectly.
Master fully installed. Top right is the relay box that had to be shuffled a bit. Still installed in factory location.
Another angle of the master install.
Wouldn't you know it, the reservoir fits the PS tank perfectly! Just realized I probably won't be using this tank. Great.
Clutch pedal I ordered.
Wire harness before total destruction.
Harness stripped down.
This relay box is for the 4WD shift motor...still don't need that.
I'll need more than this though...time to break out the wire diagram book!
Flywheel installed, with loctite, and torqued. 104 foot pounds on the bolts.
Singele disk clutch
Pressure plate
Installed!









