Technical specifications for the 1955 Power Wagon
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AXLE, FRONT . . . . . . .
Type . . . . . . . . . . . . . Single-Speed, Full-floating; Hotchkiss
Drive with Hypoid Drive Gears
Capacity . . . . . . . . . . . 3,750 lbs.
Ratio . . . . . . . . . . . . . . 4.89 or 5.83 to 1
Ring Gear - Pitch Diameter . . . . . . . 9 5/8"
Face Width . . . . . . . . . . . . . . . . . . 1 1/2"
Drive Pinion - Face Width . . . . . . . . 1 3/4"
Mounting . . . . . . . . . . . . . . . . . . . . Overhung
Bearings . . . . . . . . . . . . . . . . . .2 Adjustable Tapered Roller
Differential - Bearings . . . . . . . . . 2 Adjustable Tapered Roller
No. of Pinions . . . . . . . . . . . . . . . . . . . . 4
Wheel bearings, per wheel . . . . . 2 Adjustable Tapered Roller
Steering Knuckle Flange Bearings -
Upper . . . . . . . . . . . . . . . . Leaded Gun Metal Casting
Lower . . . . . . . . . . . . . . . . Adjustable Tapered Roller
Axle Shafts Material . . . . Carbon Molybdenum Steel, Shot Peened
Outer Axle Shafts - Diameter at Center . . . 1 1/4"
Inner Axle Shafts - Diameter at Center . . . .1 5/16"
. . . . . . . . . . . . . . Diameter at Splines . . .1.37"
. . . . . . . . . . . . . . Number of Splines . . . . 16
Housing Type . . . . . . . . . Welded Steel Banjo
. . . . . .Type of Vent . . . .Spring loaded
Lubricant Capacity . . . . . . . . . 6 pints
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AXLE, REAR . . . . . . . . . . .
Type . . . . . . . . . . . . . Single-Speed, Full-floating; Hotchkiss
Drive with Hypoid Drive Gears
Capacity . . . . . . . . . . . 6,500 lbs.
Ratio . . . . . . . . . . . . . . 4.89 or 5.83 to 1
Ring Gear - Pitch Diameter . . . . . . . 9 5/8"
Face Width . . . . . . . . . . . . . . . . . . 1 1/2"
Drive Pinion - Face Width . . . . . . . . 1 3/4"
Mounting . . . . . . . . . . . . . . . . . . . . Overhung
Bearings . . . . . . . . . . . . . . . . . .2 Adjustable Tapered Roller
Differential - Bearings . . . . . . . . . 2 Adjustable Tapered Roller
No. of Pinions . . . . . . . . . . . . . . . . . . . . 4
Wheel bearings, per wheel . . . . . 2 Adjustable Tapered Roller
Axle Shafts Material . . . . Carbon Molybdenum Steel, Shot Peened
Outer Axle Shafts - Diameter at Center . . . 1 1/4"
. . . . . . . . . . . . . . Diameter at Splines . . .1.37"
. . . . . . . . . . . . . . Number of Splines . . . . 16
Housing Type . . . . . . . . . One Piece Welded Steel Tubing
. . . . . .Type of Vent . . . .Spring loaded
Lubricant Capacity . . . . . . . . . 6 pints
Total Gear Reductions (Final Drive Ratios)
| |
4.89:1 |
4.89:2 |
5.83:1 |
5.83:2 |
| |
Axle Ratio |
Axle Ratio |
Axle Ratio |
Axle Ratio |
| Transmission |
Transfer Case Ratio |
Transfer Case Ratio |
Transfer Case Ratio |
Transfer Case Ratio |
| Gear |
1.00:1 |
1.96:1 |
1.00:1 |
1.96:1 |
| |
|
|
|
|
| 4th |
4.89 |
9.58 |
5.83 |
11.4 |
| 3rd |
8.26 |
16.19 |
9.85 |
19.3 |
| 2nd |
15.11 |
29.62 |
18.01 |
35.3 |
| 1st |
31.30 |
61.33 |
37.31 |
73.1 |
| Reverse |
38.24 |
74.93 |
45.59 |
89.4 |
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BRAKES, PARKING Type . . . . . . . . . . . . . . . . .External contracting
Location . . . . . . . . . . . . . . Rear of transfer case
Drum Diameter and Lining Width. . . . . 7 13/16" x 2"
Brake Lining - Type . . . . . . 1/4" - Woven Asbestos
. . . . . . . . . . Area . . . . . . 48 sq. in.
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BRAKES, SERVICE . . . . . . . . . Hydraulic Internal Expanding
Drum Diameter and Lining Width . . . . . . 14 1/8" x 1 3/4"
Brake Lining - Type . . . . 1/4" - Cyclebond - Tapered and Molded
Total lining area . . . . . . . 215.18 sq. in.
Brake Drums - Material . . . Composite with Cast Iron Braking Surfaces
Master Cylinder Bore . . . . . 1 1/4"
. . . .Mounting . . . .Engine Rear Support, Left Side
Wheel Cylinders - No. per wheel . . . . . . 1
. . . Type . . . . . . . . . . . . . . Double Acting Stepped - Diameter
. . . Bore . . . . . . . . . . . . . . 1 1/4" x 1 3/8"
Vacuum Booster - (Extra Equipment)
. . . Type . . . . . . . Vacuum, Suspended Diaphragm Hydraulically
Actuated Control Valve
. . . Diameter . . . . 7 1/2"
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BUMPER - FRONT
Type . . . . . . . . . . . . . . . Truck-Type Channel Bolted directly
to Ends of Frame Side Rails
Finish . . . . . . . . . . . . . . Black Enamel
Length and Width . . . . . . 65 3/8" x 8 3/8"
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CLUTCH Type; Disc-Diameter. . . . . . . . . . Dry, Single-Plate;
10"
Frictional Area . . . . . . . . . . . . . . 100.53 sq. in.
Facings-Type . . . . . . . . . . . . . . . Molded Woven Asbestos
. . . . . . Diameters . . . . . . . . . . . O.D. 10"; I.D. 6"
. . . . . . Thickness . . . . . . . . . . . 0.125"
Torsion Springs . . . . . . . . . . . . . 6
Pressure Springs . . . . . . . . . . . . 9
Engaged Pressure . . . . . . . . . . . 1,505 lbs.
Breakaway Torque . . . . . . . . . . . 306 lbs.-ft.
Release Levers . . . . . . . . . . . . . 3
Release Bearing . . . . . . . . . . . . Pre-lubricated Ball
Pilot Bearing . . . . . . . . . . . . . . . Oilite Bronze
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ENGINE . . . . . . . . . . . Dodge Truck - T137
Type . . . . . . . . . . . . . . . . .. . . . 6-cylinder, L - Head
Piston Displacement . . . . . . . . . . . . 230.2 cu. in.
Bore and Stroke . . . . . . . . . . . .3 1/4" x 4 5/8"
Taxable Horsepower Rating . . . . 25.35
Compression Ratio . . . . . .. . . 7.25 to 1
Block Material . . . . . . . . . . . . Cast Iron
With carb. and sandwich type governor (Standard)
Max. Gross HP, @ RPM . . . . 103 @ 3600
Net HP, @ RPM . . . . . . . . . . .91 @ 3600
Net Horsepower @ Gov. RPM. . 90 @ 3200
Max. Gross Torque - lb. - ft. @RPM . .191 @ 1200
Max. Net Torque - lb. - ft. @RPM . . . .183 @ 1200
With carb. and integral velocity type governor, used in
conjunction with mechanical governor (Extra Equipment)
Max. Gross HP, @ RPM . . . . 99 @ 3600
Net HP, @ RPM . . . . . . . . . . .87 @ 3600
Net Horsepower @ Gov. RPM. . 86 @ 3200
Max. Gross Torque - lb. - ft. @RPM . .191 @ 1200
Max. Net Torque - lb. - ft. @RPM . . . .181 @ 1200
Engine Mountings. . . . . .Front-Floating Power Type
. . . . . . . . . . . . . . . . . . .Rear- Rubber
Weight with Clutch, Transmission
. . . . . . .and accessories, dry . . . . . . 740 lbs.
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Crankshaft
Type and Material . . Drop Forged, High-Carbon Steel
Balanced . . . . . . . . Statically and Dynamically
Counterweights . . . . 7, Integral with Crankshaft
Bearing Journals . . . .Superfinished
Weight . . . . . . . . . . . 75 1/2 lbs.
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Crankshaft Main Bearings
No. and Type . . . . . . . . . 4 - Replaceable Precision Type
Material . . . . . . . . . . . . . Babbitt on Steel Back
Diameter and Length, No. 1 . . . . . . 2 1/2" x 1.1725"
. . . . . . . . . . . . . . . . Nos, 2 and 3 . . 2 1/2" x 1.031"
. . . . . . . . . . . . . . . . No. 4. . . . . . . . 2 1/2" x 1.590"
Total Length . . . . . . . . . . . . . . . . . . 4.825"
Total Area . . . . . . . . . . . .Surface - 37.896 sq. in.
. . . . . . . . . . . . . . . . . . . .Projected - 12.062 sq. in.
Crankshaft end thrust taken by rear main bearing.
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Connecting Rods
Type . . . . . . . . . . . . . . . .Drop-Forged I=Beam Section
Material . . . . . . . . . . . . . High Manganese Steel
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Connecting Rod Lower Bearings
Type . . . . . . . . . . . . . . . .Replaceable Precision Type
Material . . . . . . . . . . . . . Babbitt on Steel Back
Diameter and Length - each . . . . . 2 1/16" x 1"
Total Area . . . . . . . . . . . .Surface - 38.877 sq. in.
. . . . . . . . . . . . . . . . . . . .Projected - 12.375 sq. in.
Lubrication . . . . . . . . . . . Pressure
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Pistons
Material . . . . . . . . . . . . . Aluminum Alloy
Surface Coating . . . . . . . Tin - Plated
Type . . . . . . . . . . . . . . . U-Slot, Cam-ground
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Piston Rings
No. per Piston . . . . . . . . . 4
Type per Piston . . . . 2 Compression, 2 Oil Control
Location . . . . . . . . . Above Piston Ring
Surface Coating . . . .Top Ring Chrome Plated
Width, Compression Rings - 3/32"; Oil Control Rings - 5/32"
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Piston Pins
Type . . . . . . . . . . . Floating
Material and Finish...High Manganese Steel
..............................Hardened and Superfinished
Diameter and Length......55/64" x 2 3/4"
Wall Thickness..............0.140"
Total projected bearing area - in Piston...1.246 sq. in.
...........................................in Rod.......0.962 sq. in.
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Camshaft
Material . . . . . . . . . . Cast Iron
Type of Drive...............Silent Chain
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Camshaft Bearings
Material - Nos. 1, 2, and 3 . . . . . . . . . . . . . Steel Backed
Babbitt
.............- No. 4..........................................Polished
Cast Iron
Diameter and Length - No. 1 .......................2" x 1 3/32"
.................................No. 2 .......................1 31/32"
x 3/4"
.................................No. 3 .......................1 15/16"
x 3/4"
.................................No. 4 .......................1 1/4"
x 1 1/4"
Total Area ............................Surface - 21.90 sq. in.
............................................Projected - 7.045 sq. in.
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Valves
Location ...............................Cylinder Block - Right Side
Material - Intake ....................Nickel-Chrome Steel
..............Exhaust..................Silicon-Chrome Steel
Length and Stem Diameter......4 27/32 x 0.3405"
Seat Angle ............................45 degrees
Head Diameter......Intake - 1 17/32": Exhaust - 1 13/32"
Port Diameter........Intake - 1 13/32": Exhaust - 1 9/32"
Exhaust Valve Seat Inserts............Special Alloy
Valve Stem Guides........................Removable Type
Valve Tappets.............Mushroom type with Self-Locking Adjusting
Screws
Valve Tappet Guides.......Integral with Cylinder Block
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Cooling System
Capacity...........................17 quarts
Water Pump - type ...........centrifugal, with 2 - Blade
........Impeller and Permanent Bellows-type Seal
Type of Bearings................Oilite Bronze
Type of Drive......................Fan Belt
Radiator Core - type...........Fin and tube
.....Frontal Area and Thickness.....395.06 sq. in.: 3"
.....Filler Location.........................Outside in Center
Water Jackets..............................Full Length
Exhaust Valve Seat Cooling...........Pressure Spray Through
......Removable Water Distributing Tube
Circulation Control.........................Permanent By-pass Type
Thermostat...................................Choke Type
Fan - Type....................................4-Blade, 18" Diameter
.........Location..................Mounted on Hub at End of Water Pump
Shaft .........Type of Drive ...........Endless "V" Belt
Engine Heat Indicator.........On Instrument Panel
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Electrical System
Battery................. 6-volt, 15-plate, 100 Amp. Hr.
..........Location .............Under Hood, Left Side
..........Terminal Grounded........... Positive
Distributor- Type........Single Breaker, Centrifugal Automatic Advance
............Location.....................Left Side of Engine
............Firing Order.................1-5-3-6-2-4
Ignition Coil- Location.......Left Side of Engine
Ignition Switch.................Three Position Type
..................Right Position - Ignition and accessories On:
..................Center Position - Ignition and accessories Off:
..................Left Position - Ignition Off: Accessories On: Ignition
Off.
Spark Plug - Size....................14mm
Generator - Type................Shunt Wound, Air Cooled
............Capacity - Standard...............6 volt, 45 Ampere
............Capacity - Extra Equipment....6 volt, 35 Ampere
............Type of Drive.............Fan Belt
Current and Voltage Regulator...........Three unit Type, Mounted on
Dash
Starting Motor - Type of Bearings...........Oilite
........................Type of Drive.........Single reduction, Two
stage positive shift
........................Drive Ratio.............16.22:1
Horn - Type and Location...........Single electric: On engine
Head Lights - Type................Sealed Beam .......Location........................On
front fenders
.......Switch Location.............On instrument panel
.......Overload Protection........Circuit breaker
.......Beam Shift....................To right
.......Beam Switch Location....On left side of toe board
.......Beam Shift Indicator.......Above speedometer
Parking Lights -- Location......On cowl
Tail Lights - Type...Combination tail and stop light
Stop Light Switch..................In Brake master cylinder
Instrument Panel Lights - Type..........Indirect
...................Switch.........................On instrument Panel
Ammeter Location...........................On instrument Panel
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Fuel and Exhaust System
Carburetor . . . . . . . . . . . Plain tube, downdraft
.......Nominal Size............1 1/2"
.......Jet Adjustments........Idle Only
.......Accelerating Pump....3 - position Seasonal adjustment type
.......Governor..................Standard Type, set at 3200 RPM
Extra Equipment....Used with mechanical governor for rear drive shaft
assembly
.......Type ..........................Plain tube downdraft
.......Nominal Size..............1 1/2"
.......Jet Adjustments..........Idle only
.......Accelerating Pump......Vacuum-operated
.......Governor.....................Integral velocity type, set at
3200 R.P.M.
Air-Cleaner - Type..............Oil-bath
.......Oil capacity................1 quart
Fuel Pump.........................Mechanical diaphragm type
Fuel Pump Heat Shield.......Yes
Fuel Filters.........................2 Used - Screen type integral
with pump and ceramic type at carburetor
Fuel Tank...........................18 Gallons capacity, mounted at
rear of frame, right side
Fuel Tank Filler...................Right rear of body
Fuel Gauge.........................Magnetic, on instrument panel
Manifold Heat Control...........Manually adjustable type
Muffler................................Straight through type
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Lubrication System
Type.........................Pressure through drilled passages to main,
lower connecting rod
................................and camshaft bearings. Direct oil lead
to camshaft drive chain and sprockets.
Oil Pump..................Rotary type with oilite rotors
Controlled Oil Pressure....40 lbs. at 800 engine R.P.M.
Oil Filler Pipe Location....Left side of engine
Oil Intake.......................Floating screen type
Oil Filter - Standard........Sealed type
................Extra Equipment.....Replaceable element type
Oil Pressure Gauge........On instrument panel
Oil capacity....................6 qts. with filter; 5 qts. without
filter
Crankcase Ventilation.....Sealed positive type
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FRAME . . . . . . . . . Double drop
Crossmembers - Including Front Bumper.......5
Side Rail - Max. Depth and Flange Width. . . . .6 3/32" x 2 3/64"
.............Thickness......................11/64"
.............Reinforcement................Inside channel type
Section Modulus with Reinforcement . . . . . . . . . . . . 4.516
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PROPELLER SHAFT
Type and Diameter................Tubular, 2 1/2"
Length -
.............Transfer case to front axle...........33 5/8"
.............Transfer case to rear axle............47 1/8"
.............Transmission to transfer case......9 5/8"
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SHOCK ABSORBERS
Type. . . . . . . . . . . . . .Telescopic Double-acting, 1 3/8" piston
diameter
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SPRINGS, FRONT
Type and material..Semi - elliptic, chrome alloy steel
Length and Width..........39" x 1 3/4"
Nominal Capacity per Spring - Std...........1,150 Lbs.
............................................Extra.........1,600 Lbs.
Number of Leaves - Std............................8
.............................Optional.....................11
Deflection Rate (lbs. per in.) - Std..............435
...........................................Optional.......614
Shackles - Type.....................Pin and bushing
Location................................At front of spring
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SPRINGS, REAR
Type and material..Semi - elliptic, chrome alloy steel
Length and Width..........52 1/4" x 1 3/4"
Nominal Capacity per Spring - Std...........2,500 Lbs.
............................................Extra.........3,000 Lbs.
Number of Leaves - 2,500 lb. spring..........12
.............................3,000 lb. spring..........14
Deflection Rate (lbs. per in.) .2,500 lb. spring........504
............................................3,000 lb. spring.......606
Shackles - Type.....................Pin and bushing
Location................................At front of spring
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STEERING
Gear Type and Ratio . . . . . Worm & Sector, 23.2:1
Wheel Diameter . . . . . . . . . . . . 18 in.
Linkage..............................Aft type
Tie-rod - Type ...................Ball and Socket (Solid)
.............Diameter..............1 5/16"
Drag - Link Type................Ball and Socket
.................Diameter.........1"
..........Wall Thickness.......5/32"
Turning Diameters - Right and Left........55 feet
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TRANSMISSION
Type . . . . . . . . . . . . . . Spur gear
Number of Speeds.........4 forward, 1 reverse
Ratios.....................4th - 1.00; 3rd - 1.69; 2nd - 3.09; 1st
- 6.40; Rev. - 7.82
Input Torque Capacity......216 ft-lbs.
Lubricant Capacity...........6 pints
Bearings, Mainshaft Pilot.............1 roller
..............Mainshaft Drive Pinion....1 Ball
..............Mainshaft Rear..............1 Ball
..............Countershaft..................2 Needle Roller
..............Reverse Idler..................Bronze Bushing
Power Take-Off Opening -
..............Type..............SAE Standard, 6 - Stud
..............Location.........Both sides of transmission
Power Take-Off Gear - No. of teeth..........36
Pitch.....................................................7
Pressure angle of teeth........................22 1/2 deg.
Direction of Rotation -
..............Right Side...................Enginewise
..............Left Side.....................Counter-Enginewise
..............Gear Speed...........395 R.P.M. @1000 engine R.P.M.
..............Pitch Line to Face Opening.........1.05"
.............Face of Gear to c/l of Opening.......13/32"
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TRANSFER CASE
Number of Speeds.....................2
Lubricant Capacity.....................5 pints
Bearings, Drive Gear Shaft..........1 Set , loose rollers, 1 ball bearing
...............Drive Gear..................2 Sets looos rollers
..............Driven Shaft Front........1 Set , loose rollers, 1 ball
bearing
..............Driven Shafts - Rear - Two Shafts......2 tapered roller
each
..............Idler Shaft...................2 Tapered roller Ratios......................................1
to 1 and 1.96 to 1
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UNIVERSAL JOINTS
Type ........................Cross and trunion
Bearings...................4 Cageless rollers per joint
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WHEELS AND TIRES
Tread, Front and Rear
.............5.50 Rim.......................64 3/4"
.............6.50 Rim.......................64 3/4"
Wheels.....................................5 Stud ventilated disc
Rims.........................................Semi-drop center
Spare Tire Carrier....Off the Body for Express Models; Off the Frame
for all Chassis-Cab Models
AUXILIARY EQUIPMENT
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DRAW BAR
Mounted on.....................Rear Crossmember
Adjustable for...............Height and Off-center Towing
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FRONT TOW HOOKS
Mounted on..................Front of Frame
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MECHANICAL GOVERNOR
Mounted on......Right Front Corner of Cylinder Head
Driven by..........Belt from pully on water pump shaft Speed Setting
Control - Location.......Under Right side of instrument panel
Speed Range.......................1000-1700 Engine R.P.M.
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PINTLE HOOK
Non-Adjustable, Mounted on Frame Rear Crossmember.
.....Note: Pintle hiik cannot be used on vehicles with Tail Shaft Drive
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POWER TAKE-OFF
Mounted On.................Left Side of transmission
Drive Taken From..........Transmission countershaft
Power Outlets..............2; 1 - Front, 1 - Rear
Direction of Rotation.......Reversable
Controlled By.................Lever inside cab
Speed 61 1/2% Enginewise; 47 1/2% Counter-Enginewise
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POWER WINCH
Type and Capacity.................Worm and Drum; 7,500 lbs.
Mounted on...........................Frame, front of radiator
Worm Thrust Bearings...........2 Tapered rollers
Drive Shaft - Type..................Solid
..................Dia. and Length...........1 1/8"
Universal Joints - Number and Type.....................2 Cross and
trunion with roller bearings
Cable - Type, Diameter and Length...........................Steel,
7/16" x 250'
Lubricant Capacity...............................1 quart
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REAR PULLEY DRIVE
Pulley - Diameter and Width...............9" x 6 5/8"
Goverened Belt Speed (ASAE Std.)......3100 Ft. per min.
Gears - Type and Ratio......................Spiral Bevel; 1 to 1.87
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TAIL SHAFT DRIVE
Driving Members.............2 Tubular drive shafts and 1 Pillow block
shaft
Universal Joints - Number and Type.............3 cross and trunion
with roller bearings
Pillow Block Shaft Bearings.................2 Tapered rollers
Pillow Block Shaft - Spline Size...........1 3/8 - 6 SAE Std.
Goverened Speed - Standard............536 R.P.M. (ASAE Std.)
Developed HP...............................35 at 1700 Engine R.P.M.
Pillow Block Mounted on Frame Rear Crossmember