For Sale 1978 FJ40 w/ OM617 diesel, Marlin Toybox and Orion (1 Viewer)

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Location
United States
SOLD

Purchased in the winter of 2010 as a beat up project with a Chevrolet 250 straight 6 with a single barrel carburetor and a 20 year old paint job that buried rust in the quarter panels I loaded it up and headed home. Originally planned as a mild wheeler and the platform to teach my children how to drive a standard it soon evolved into much more. The build thread, for what it is worth can be found here. Build Thread

In 2011 I installed a Mercedes OM617 turbo diesel out of an 85 SD. Luke at 4x4labs and Mr. Manny had both started similar swaps but information was very scarce. I built my own adapter plate and installed a very wore out 5 cylinder diesel, within a few months I had it on the road to mixed results. Lots of information in the build thread on this but for the most part it was a terrible failure. By running 16+ pounds of boost I soon managed to burn a hole in a piston and almost scrapped the whole project. Fortunately, I came across a low mileage 300D with a bad tranny and picked it up. I purchased an adapter from an outfit in Minnesota that specialized in installing 700R4 tranny’s in the Mercedes 300 series cars and installed the new motor. Much better results than the original, it pushes the square box down the highway on 35’s with reasonable power.

1978 Toyota FJ40 w/ diesel designated title $12,000 OBO $11,000 OBO







Engine

  • OM617 turbo diesel running stock boost and the ALDA tuned moderately.
  • 130,000 miles on engine when pulled
  • New rings and bearing when installed
  • York onboard air
  • Mercedes adapter to Chevrolet bellhousing
  • AA Chevy bellhousing to Toyota H42 tranny


Transmission/Transfercase

  • Stock H42 tranny
  • Marlin Toybox 4.7-1
  • Orion 4-1transfercase w/27 spline front output
  • 274-1 crawl ratio
  • A gear for every occasion
  • Custom built cross member under the Toybox
  • Full coverage skid plate
  • 18” Belly on 35’s


Front axle

  • FJ60 axle with Aisin lockouts
  • Marlin highsteer arms
  • V6 4runner calipers
  • Saginaw steering box with hydro assist
  • PSC 6” x 1.5” assist ram
  • Longfield 30 spline shafts (not Trailgear)
  • Arb Locker w/4.10 gears
  • Housing is cut and saddled to eliminate outboarding springs
  • Additional bare FJ60 housing for future linking
  • SOA on flipped rear 40 springs
  • Shackle reversal
  • Marlin longslip driveshaft with creeper joint and CV joint ~38” long
  • 58.5” WMS


Rear axle

  • FJ40 housing w/4+Parts full floater flanges
  • FJ60 brake calipers
  • Toyota spindles/hubs/bearings/Marlin seals
  • Nitro Cromoly shafts
  • Toyota E-locker converted to air w/4.10 gears
  • Ruffstuff diff cover
  • Antiwrap bar
  • 58” WMS
  • CV joint driveshaft ~25” long
  • FJ60 springs reversed
  • 101” wheelbase


Other

  • Warn 8274 w/100’ spydura synthetic rope
  • Metaltech clone bullbar w/KC lights
  • 4+Parts 8274 bumper
  • Custom built tube fenders and sliders
  • Custom built family style rollcage using Metaltech A pillers will work under Paki top or factory hardtop but will not fit under a Bestop
  • 5 35” Creepy Crawlers mounted on Procomp wheels
  • Factory spare tire mount modified to keep 35” tire inside body line
  • 7 gallon air tank for OBA system
  • Air lockers actuated by mechanical switches
  • Hardtop and doors with all original TEQ glass
  • Factory rear heater
  • Fits in a 7’ garage w/hardtop but by the slimmest of margins (quite possibly because of the slight drop of my driveway)



The Bad

  • Mostly rust free body will need some body work (I enjoy rock crawling too much)
  • Rear quarters built out of 10 gauge material have some dents
  • Windshield frame is beat up on passenger side
  • Passenger side B pillar down low by door is beat up
  • Mercedes engines leak oil and this one is no exception. Not so much that is ever low but certainly annoying. Quarter size drops in two places over night, not like a real gusher.
  • GM polyurethane motor mounts are great for controlling the twist of the motor but transmit all the engine vibration to the frame. I made an idle adjustment and virtually eliminated the vibration that was bothering me.


Additional Items

  • Front axle shafts
  • 4.10 diff
  • H42 transmission
  • 3 speed transfer case
  • Aforementioned FJ60 front axle housing
  • Rear jump seats in need of repair, they still fit
 
Last edited:
MY GOD someone needs to buy this so I don't!
You could never build this thing with this level of workmanship for nearly this $$
Jeez, even the air elocker conversion is a work of art!
I have witnessed this rig both crawl and blow down the freeway... it is a reliable, capable, well built machine
4 outta 5 voices in my head say BUY THIS THING!
 
I have had a few questions about the shifters for the tcase and toyboxView attachment 1429880
Right front lever is 2wd/4wd, right rear lever is the Orion 4:1 and the left rear is the 4.7 toy box. Both rear levers have the same basic throw and are in low range when forward.
In this picture tranny is in nuetral, transfer case is in 2 wheeldrive and both boxes are in high range.
MY GOD someone needs to buy this so I don't!
You could never build this thing with this level of workmanship for nearly this $$
Jeez, even the air elocker conversion is a work of art!
I have witnessed this rig both crawl and blow down the freeway... it is a reliable, capable, well built


I agree 1000%
 

I agree 1000%
 
MY GOD someone needs to buy this so I don't!
...
4 outta 5 voices in my head say BUY THIS THING!

The 4 voices saying buy it are inside your head and the fifth, telling you not to buy, is actually your wife whispering in your ear. LOL :)
 
What highway speed does it travel at comfortably (I know Fj and comfort cannot be used in the same sentence).
 
It will cruise at 60-65, cabable of making 75-80 for short stretches although that would be asking for trouble. IIRC the sweet spot for an OM617 is about 2800rpms with a max of 5000rpm.
65mph calculates out to 2600rpm and operating between a calculate 1800-3500rpms seems to be were it is happiest. I say calculated because it does not have a tach.

Check out this screen shot from Grimmjeeper's website of the. calculate values based on rpms. His site is the best I have found for gearing and crawl ratios. He has 100's of transmission in the database and an option to choose your own numbers.

IMG_5279.PNG


The site can be found at this link, hope he doesn't mind.
http://www.grimmjeeper.com/gears.html
 
For those of you that are interested in the crawl ratios, here is a screen shot of them. My favorite gear is 3rd with both boxes in low but I use 1st and 2nd whenever it gets real technical.

IMG_5280.PNG
 
That truck needs a good home. Awesome!

If I didn't just waist 11,000 on a rig no where near as capable as this rig, I would already have a shipper picking this awesome cruiser up. Impulse buys suck.
 
Bump ttt
 
Last edited:
Easter bump.

I've been daily driving her lately and taking care of some small issues that I have ignored in the past. She drives better now than she has in all the time I've owned her.
 
I can't believe this hasn't sold.

If I weren't on Cruiser probation I'd be calling...but I like remaining married.

GLWS
 
Price reduced to $11,000
 
She has been sold. Thanks for the interest
 

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