Roy's M676 pickup

Mogger

Bigger Hammer
Apr 17, 2025
40
Mazama, Washington
First Name
Roy
Willys Model
  1. Forward Control
  2. CJ
Willys Year:
  1. 1950
  2. 1964
I just needed a pickup truck. Have never really owned a typical pickup, but gold mining has created the need for one. It must carry moderately heavy, bulky loads, be on the small side, nimble, economical, reliable. And tough, simple…

I couldn’t find anything I liked. Nothing recent appealed to me. The modern pickup isn't very utilitarian. I need to haul Rokons, sometimes bulky mining equipment, crushers, shakers, processors. Fuel tanks, drums. Welders, torches, repair tools, parts. Up and down ancient little mining tracks that would impale a normal car- even the average truck.

Back in about 1983 or so, I had an FC170. Someone brought it to my shop with a small block chevy installed but not finished. The cab was zebra striped, the OE bed was copper color; not a ton of rust. It drove, but that was about it. I finished it, became a pretty decent rig. The customer decided they couldn’t pay the bill and gave it to me cheap. Had it for 3 or so years, then reluctantly sold it.

Well…if newer trucks are so unappealing, how about the ugliest truck ever built: Frankenstein’s head on a roller skate- the FC 170? Without realizing I was looking, I looked. And found an M676 version FC 170, 50-60% rebuilt. That was last fall (2024), an ad everyone probably saw, on FB marketplace, with the roof cut off. The absent roof obscured the rundown on the truck. I got a great deal on it.

It once was a troop carrier, had a cover over the bed. And only carried people, so the bed is about as perfect an FC bed as you’ll ever see. The odometer says 60582, and I bet it’s only been around once if at all.

The undercarriage has been completely gone thru. The military rigs had limited slips front and rear, all came with the Warn overdrive, this has a Ramsey PTO with separate shifters for front and rear, and 4.88 axles. Everything underneath had been rebuilt…new brakes, tires, reworked springs, axles, gear boxes, steering- all freshly painted and never driven. But the topper: The previous owner had squeezed a GM LS 5.3 engine into the engine bay. It’s new, complete with a scattershield bell housing, flywheel, and clutch.

That engine doesn’t actually fit, not in my book. You’re not behind the steering wheel, but almost out the drivers door. The engine is simply too huge for an FC- unless you want to change the whole rig. The freshly rebuilt OE drive train can’t handle the muscle. That motor would twist the little Warn OD into a pretzel in a heartbeat. The drivetrain is tough stuff, but not against 250 hp. I figure it once had the 3 cylinder Cerlist diesel; better stay with Diesel, and go with odd number of jugs. Three up to Five!

The V-8 is removed, up for sale. I bought a driving 1985 Mercedes Benz 300D sedan for the engine. It’s the 5 cylinder OM 617A turbo. The car runs and drives pretty well, interior shot. The engine has about 120K on it. Several companies make adapters to GM/Chevy.

What’s my goal for this old beast? Only a pickup truck! A very tough little pickup, capable of clambering up some very steep, super narrow mountain trails while carrying decent loads. It will be dependable and reliable, just a work horse, but look so cool doing it! It will probably see some highway miles, but won’t usually be a freeway driver.

I'll break this up into pieces: taking the cab as a piece, the drivetrain, any electricals etc in pieces. Stay tuned!
 
A few pix of what I got- internet out here in the sticks is slower than a Cerlist FC170! Patience lads, patience!
 

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It came with a near- perfect original windshield- thank goodness! That's stored in a padded room guarded by my elves- who are otherwise useless.

Unfortunately, this is no pristine example of an M676. I don't know how long ago the Cerlist Diesel was removed. The story goes that the chap who had the rig then was using it for some kind of job that was in the public's eye. (I'll try to find out more of the story) It was smoking so much that eventually his employer told him it had to get fixed. That guy installed a I-6 258 jeep motor, which I never saw either. There are quite a few remnants of bygone days, for example the enormous Cerlist radiator, and the factory aluminum dog house came with. A number of old cab features- the boxes behind the seats, pieces of sheetmetal that have been cut off, the military dash in original shape, complete with blackout lighting... are still here.

But the frame, pretty as it is, is not original. The cab fared worse than the bed. It's plenty salvageable, but plenty rusty.

The original T90 was rescued from a scrap pile.

It now sports a Saginaw wide range 3 speed, (new)adapted to the Dana 18 t-case. That's fine, and switches the front interface to a super common chevy standard pattern.
 

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Here's a great discussion start point: I wasn't particularly searching for the military rig. But when I saw this I recognized the value. Much of the work that was done is absolutely first rate: such as BRONZE brake lines! Most of which are sheathed in plastic tubing.

So, the question is how far would you go/should I go to keep it military? It will be green, but a lighter shade. It won't be show car shiny- it's going to get some scratches in the line of duty.

I'm undecided on the dash- will probably use the original dash for a while. The wiring harness was still in it. But the military dash isn't the greatest arrangement. I may eventually build a full dash and pickle the original for posterity. Or, does anyone have a civilian dash they don't need?

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Roy, did you look into the military Dodge M37 at all. They are as rugged and simple as they come, parts still very available and are much more plentiful than those uber-rare military FC’s. They are 3/4 ton with a more trail friendly wheel base.

I’m the “Doug” Stakebed warned you about.
 
Roy, did you look into the military Dodge M37 at all. They are as rugged and simple as they come, parts still very available and are much more plentiful than those uber-rare military FC’s. They are 3/4 ton with a more trail friendly wheel base.

I’m the “Doug” Stakebed warned you about.


I'm well aware of the old Dodge M37! Super cool old rigs. There are a couple of them nearby, one an ambulance. Problem is- just not odd enough, and not Jeep! Too many parts available, too easy! Please forgive my sense of humor
 
Among the advantages of the convertible top FC: easy engine removal! Just prop up the roof and remove the wheel. Also helps to have the 676's open engine area.
 

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Following this build like a happy hound - what color is it going to be? Gold? (C'mon man, do it!) What's the thought about wheels and tires for the high up hillside rocky tracks? Low-medium gear to slow the weight coming down?
 
Think I'm going with a lighter green. Possibly the light army color, or something like sage color.

The tires that are on it are brand new, aggressive Wrangler Duratracs. Think they're 28- 30" tall. Happen to have a full set of real nice Alpine chains that fit them perfectly. Given the budget, I'll probably wear them out.

Getting the old beast running & driving has to come first!
 
The cowl flop on this thing is impressive with no roof. It shows up the most at the rear edge of the door. Just barely opened, the door is around 2" lower than the jamb. A buddy came over and levered the door while I watched- most of the bending is happening where the drivers floor meets the wheelwell. Some of the reason is the weak floor, some is because the heavily cut military engine bay doesn't have as much structure.

I'm making calculations on a tip cab. Have electric hydraulic pumps, have long skinny cylinders, even have some hoses. Cab will need a sub frame, probably 1 x 2 square tube. Not certain what the time line will be on that idea.
 
Got pretty excited to see this & get some pix. This is the original military canopy that was on my rig. It's aluminum, including frames. Tailgate is long gone. It's currently being used as a storage shed, but I'll get it soon.
 

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Made another little piece of progress last week. Went and picked up the engine, still wrapped in the donor car- an OM617 turbo diesel motor. Drove the car 350 miles home. Engine has about 170K miles on it, was replaced a while ago. The car has closer to 400K on it. Comes with a big electric fan, power steering pump (if I go that route), 70 amp Alternator, huge air filter connected to the turbo by hose (remote mount?), 2 gallon oil capacity, and old-diesel simplicity: no electronics. Car got 32 mpg on the drive. A fairly ideal FC170 motor.
 

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