CJ-3B Specifications
and Technical Information Sources

Universal Jeep Model CJ-3B

• G.V.W. 3500 lbs. (1587.5 kg)
• Curb weight: 2243 lbs (1017.4 kg) (2418 lbs. on M606).
• Overall length: 129-29/32 in. (3.30 m)
• Overall width: 68-7/8 in. (175 cm)
• Overall height (top of windshield): 66-1/4 in. (169 cm.)
• Tread front and rear: 48-7/16 in. (123 cm)
• Wheelbase: 80 in. (203 cm.)
• Front / Rear Overhang: 20.59 in. / 22.31 in.
• Tailgate: 36 in. Wide x 19.25 in. High
• Ground Clearance: 8 in. (20.3 cm)
• Load Space: 32 in. x 52.315 in. x 14.125 in.

See CJ-3B Drawings for more dimensions.

• Engine: "Hurricane" F-head, 134 cu.in. (2.2 liter), 4 cylinders
• Cooling system capacity 11 qt. (10.4 ltr.) (12 qt. with heater)
• Electricity: Battery 50 Amp. Hour 12 volt, Generator 35 Amp.
• Front axle: Dana/Spicer 25 (until 1961) 27 or 27A, Full-floating hypoid, Ratio: 4.27:1 (5.38:1 optional)
• Rear axle: Dana/Spicer 44, Semi-floating hypoid, Ratio: 4.27:1 (5.38:1 optional)
• Brakes: Hydraulic, 9 in. drum diameter x 1.75 in., 117.8 sq. in. braking area.
• Clutch: 8.5 in. Auburn or Rockford single dry plate with torsional damping, 72 sq. in. area. (Optional Auburn single dry plate, 9.25 in. dia. )
• Transfer case: Spicer 18, 2 speeds, 1.00:1 and 2.46:1 (26 tooth input gear and 1-1/8 in. intermediate shaft up to serial number 54-12506; 29 tooth input gear and 1-1/4 in. intermediate shaft after serial number 54-12506)
• Transmission: Warner T-90 3-speed syncromesh, Ratios: 1st-3.339:1 (or 2.798:1), 2nd-1.551:1, 3rd- 1.00:1, Reverse-3.798:1

The plate (10-1/4 x 2-1/4 in.) found on the passenger side of the dashboard lists maximum speeds for all gears. (Reproduction plates in various styles are available from www.dataplates4u.com.)

• Frame: Heavy steel channel sides, 4.125 in. depth x 1.937 in. width, with 6 cross members (possibly five on early models). Length 122.656 in.
• Fuel tank 10-1/2 gallons (38.75 ltr.)
• Shock absorbers: Telescopic hydraulic. Monroe, 10.75 in. dia. double acting.
• Springs: Semi-elliptical leaf type. Front: 36 1/4 in. x 1 3/4 in., 10 leaves, Rate 260 lb./in. Rear: 42 in. x 1 3/4 in., 9 leaves, Rate 190 lb./in. (Optional 11-leaf Heavy-Duty, Spring Rate: 225 lb./in.), (10 leaves, Rate 400 lb./in. on some M606 models).
• Steering: Cam and lever, overall ratio 17.9 to 1 (Ross Model T-12 with 14-12:1 ratio on early models)
• Tires: 6.00x16: 4 ply (7.00x15 optional, also 7.00x16 on military M606 version)
• Wheels: Kelsey-Hayes 4.50x16 inch, 5 stud

Instrumentation

Ammeter, Heat Indicator Gauge, Speedometer, Oil Pressure Gauge, Fuel Level Gauge. The small speedometer (similar to the CJ-2A and CJ-3A) used in early models was manufactured by King-Seeley (KS). An Auto-Lite unit was used in Jeeps that registered in kilometers.

Starting as early as serial number 57348-34422 in the 1957 model year, a new larger speedometer/instrument cluster was used. Through serial number 57348-35521 it was a King-Seeley, and begining with 35522 there were Stewart-Warner (SW) units in 6 and 12-volt, and miles and kilometers.

For more details on part numbers and applications for KS and SW instruments according to serial number, see DJ-3A (and CJ-3B) Speedometers. See also these pages of the 1962 Jeep Universal Parts List (100K JPEG):

• page 77 (200K JPEG)
• page 78 (120K JPEG)
• page 79 (130K JPEG)
• page 80 (100K JPEG).

Compared to Other Jeeps

(From Jeep vehicles and equipment, Willys Form #W-992-5)

Technical Information Sources

The above information comes from the Haynes manual (Jeep CJ:1949 thru 1986), the Chilton manual (Jeep: 1945 to1987), and the Kaiser Jeep Universal Service Manual (1965).

See the CJ3B Bookshelf for other useful books.

See Specs and Tech Tips on CJ3B.info, and the CJ-3B Bulletin Board for answers to questions.

JeepBook.com has a variety of original Jeep manuals and literature.

Reprints of Parts, Service and Owner's Manuals are available from Original Reproductions.

Download Parts and Service Manuals in PDF form at Willys Manuals.

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