1948 3/4-Ton Five-Window Flatbed Chevrolet



Wally / Montana

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My 1948 Chevrolet 3/4-ton high above the Missoula Valley
1948 Chevy




1951 Chevrolet Deluxe.   My First Car.

I have been a fan of old Chevrolets since 1962 when I bought my first car - a '51 two-door Deluxe - for $60.  Four years later, that old Chevy with its splash-oiling 216 engine carried us and a U-Haul trailer 1250 miles from western Washington to southeast Wyoming, crossing the Continental Divide several times through Yellowstone while loaded to the gills.  We had a contest to see which family member could guess our miles per gallon.....of oil!

1951 Chevrolet Deluxe on the road from Seattle to Laramie, Wyoming in 1966.  Camping saved money.
1951 Chevrolet Deluxe    1951 Chevrolet Deluxe


Laramie, Wyoming, 1968
Watch where you point your car when parked in a Wyoming blizzard. Yes, the hood was down.
1951 Chevrolet Deluxe    1951 Chevrolet Deluxe


Our '51 in the sagebrush of Wyoming.
1951 Chevrolet Deluxe




1939 Chevrolet Master Deluxe.    My Second Car.

In 1964, while I still had the '51, I bought a '39 Chevrolet four-door Master Deluxe car for $20.  I figured its full tank of gas made the net cost $15!  It quit running and needed some work so starting in 1966...after priming and painting...it was stored at seven places - with in-laws, mostly - while we moved from Washington to Wyoming to Florida to Georgia to Wisconsin and, finally, to Montana. 

I ran out of in-laws who would keep the darn thing and I didn't want new ones (I love my wife!!), so I sold the '39 in Washington in 1992 for $1500 and bought the '48 truck in Montana for $600.

1939 Chevrolet Master Deluxe at the farm in Kingston (1966) and at the Cabin on Hood Canal (1977).
1939 Chevrolet Master Deluxe    1939 Chevrolet Master Deluxe





1948 Chevrolet Thriftmaster.

Click here to hear my '48 start and run with its newly rebuilt 261.
'48 Chev in Fall


1948 Montana Truck License Plate         The body style of the '48 Chevrolet truck is called Advance Design.  Mine has the deluxe stainless steel window trim and chrome grill.  Windows 4 and 5 on the corners - originally advertised as Nu Vue windows - coupled with a cab fairly far off the ground make for excellent visibility in all directions.  I think yellow house paint was used to cover the original Forester Green.  There was a little surface rust on the fenders so I painted them with black Rustoleum temporarily.  It is funny how long "temporary" can last!

Eastern Montana's Rocky Mountain Front - where my truck grew up.
Rocky Mountain Front
Old style stiching for a panorama.

The running boards indicated it originally had the 8 foot box but some previous owner made his own flatbed for it.  It had the knob in the cab for a PTO - a power take-off - but, sadly, the unit was not bolted to the 4-speed transmission.  I've always wanted to hook up a big ice cream maker to a power take-off!

I quickly rebuilt the master and wheel cylinders and installed new brake shoes but the engine - a '53 full-pressure 235 (from a car with Powerglide) - was in great shape and burned no oil (although it did leak some).  I cut a hole in the flatbed and recessed the spare tire into it.

The Carter W-1 carb worked fine after a rebuild but I replaced the oil-bath air cleaner with a Fram.  I raided the kitchen for a cake pan to top it off.  Gear lube leaked out the torque tube half of the drive line - what a perfect place to strap a sauce pan!  I won't say where I used a cookie pan!

The 235 with cake pan and the sauce pan underneath
Cake Pan    Sauce Pan

I had the seat rebuilt and my wife fine-tuned some new Saddleman seat covers.  That completed the first stage of restoration - I could drive it without getting dirty!

The '48 became my daily driver.  I worried some about the liquid deicer used on our city streets in winter but - supposedly - it contains corrosion inhibitors and I rinse the truck frequently whenever the deicer is being used.  When I take it out of town, I hang a blaze orange farmer's triangle on the back since my comfortable top speed is 40-45 MPH.

At my "fish farm" on the Clark Fork River.
At the Clark Fork



After 10 years of daily driving, I decided to adjust the valves - maintenance that I had never done.  I noticed a drop of "green water" on the head.  Yep, magnafluxing showed a crack between cylinders four and five.  With the head off, I found a smooth indentation up and down the number one cylinder wall.  Yep, a broken ring.

I talked to an engine fellow about rebuilding the 235 but he had a '61 full-pressure, full-flow 261 which was indeed better.  It was not just the greater horsepower; the oiling system was much better.  I found an "848" head (casting # 3836848) at the junk yard and found a second one later for a spare.  These heads - from later 235's - have slightly smaller combustion chambers which give a little higher compression ratio and horsepower than the original head for the 261.

The shop manual says to pull the engine with the tranny attached.  Not a great idea!
My cleanly dressed friends came over to help.
Pulling 235


The spare 848 head.
848 Head


I decided to go with hydraulic lifters for the 261.
Lifters

The rebuilt engine - the last in the 216-235-261 series of straight Stovebolt sixes - dropped in and bolted up with very few problems.   I found a Rochester Monojet carburetor which was needed for the new intake manifold at the junk yard.  I also swapped the original 4.57 rear end "pumpkin" for a 4.10 and completely rebuilt the brake system including new lines and a dual reservoir master cylinder.


This driveway project took over a year including, of course, two full winters - not two summers.
Snow on the '48    Beer Cooler


The rebuilt 261 looking good!
261 Ready to Go

In March, 2004, I started up the 261 for the first time. Mrs. Wally was there, of course, but she held a fire extinguisher!  Smart girl.  Twenty minutes at 2000 RPM was recommended for seating the cam shaft.  Was I ever happy!!!!

20 minutes at 2000 RPM
20 min at 2000 RPM

I later changed to a Moroso adapter for a spin-on oil filter.  I had two oil pressure gauges - before and after the filter - for a while.  I wanted some info about a pressure drop across the filter when started but the response time on the first gauge was much slower than the other.

Spin-on oil filter.
Spin On Oil Filter


I must thank my wife for her support during the project - even letting me co-mingle items in the dish drainer.  A Carter YF 2100S carb - which I'll swap for the Rochester Monojet later - is shown below.

Peaceful Coexistence
Carter YF




More Work on My '48.

After altering some brackets, I went to 12 volts with an alternator.
Alternator


12-Volt electric wiper motor.  I called the old vacuum system "intermittent wipers."  Sometimes they worked, sometimes they didn't.
Wiper Motor


I wired some resistors to calm down the original
6-volt heater fan motor and give it two speeds.
Resistors


The glove box is a nice place to hide a modern radio.
The old radio face plugs up the original holes.
Radios



The original Huck-style brakes were replaced
on the front with Bendix brakes from a '57 1-ton.
Bendix




More Missoula Advance Designs.

Steve Carozza's '55 1st-Series Chevy 3/4-ton with my truck at work.
Trucks at Work    Trucks at Work


Steve was a great help in my project.  We got in contact on the Internet via the Stovebolt Forum and found our offices at work were only 150 yards from one another!  Mine hangs a little low and to the left because of a spring problem.



Later, Glenn Slay and I got in touch when he saw on the Stovebolt Page that I lived in Missoula.  Small world again!  Here is Glenn's very nice '54 1/2-ton.   (Glenn has since sold hjis '54.)

Glenn's 1/2-ton '54 with my '48.
Glenn and Ed's Trucks    Glenn and Ed's Trucks





Tor Mortensen's '54 3/4-ton 5-Window Chevy.
Tor and Ed's Trucks    Tor and Ed's Trucks


We meet with Glenn periodically to check Tor's progress on his '54.  He'll be pulling the engine for a rebuild during winter 2014-15.  That is a handcrafted, heavy duty gas tank/tool box in the back!




Granddaughter's preference for a new paint job.



The future look for my 1948 3/4-ton 5-window flatbed Chevrolet.
Future Look