Pages 38–45 (8 pages)

Truck

From the 1949 GM Product Service Bulletin – March 1949 Issue

Chevrolet and GMC truck items: superseded partial engines for 1940–1945 trucks, a 25-step repair for radiator leakage on 1947–1949 Chevrolet 1/2 ton trucks with diagonal brace rods and a new two-point radiator support mounting, and identification of clutch diaphragm springs #753555 and #753930 for 3 ton and Series 450 trucks. It ends with revacycle differential gears in the Eaton 2-speed axle on FC-450 and ACR-520 models.

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What this section covers

  • Partial engines #5790314 and #5790315
  • 1/2 ton radiator leakage and support bracing
  • Blocking off radiator core corner tubes
  • Clutch diaphragm spring identification
  • Revacycle Eaton 2-speed axle gears
Year
1940, 1941, 1942, 1943, 1944, 1945, 1946, 1947, 1948, 1949
Make
Buick, Chevrolet, Fisher Body, General Motors, GMC, Oldsmobile, Pontiac
Vehicle
Passenger Cars, Trucks
Type
Service Bulletin
Models
Chevrolet 1000/1200, Pontiac 2000–2700, Oldsmobile 3500/3700, Buick, Chevrolet and GMC trucks 1/2–3 ton
Pages
45

What’s inside

Bulletin

  1. Cover and Training QuestionsThe cover marked Training Copy, March 31st, 1949, and Dealer Co-operative Service Training examination No. 15 for body men, with multiple-choice questions on quarter panel crack repair, door lock strikers, regulator arms on A bodies, Hydro-lectric folding top hydraulics and arm rest attachment.pp. 1–3
  2. Chevroletpp. 4–15
  3. Pontiacpp. 16–27
  4. OldsmobileAn assist handle installing fixture for disabled drivers on 1941–1949 models, Carter carburetor sheets for 1948 Hydra-Matic cars, and a revised fast idle cam adjustment for the 1949 Series 3700 Rochester carburetor.pp. 28–29
  5. BuickThe oversize service axle shaft spacer block #1323880 for 1934–1949 models, which needs the axle shaft ends ground to fit, and Carter carburetor sheets for 1948 Series 40 to 70.pp. 30–30
  6. Bodypp. 31–37
  7. Truckpp. 38–45

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