tm9-801.com

This may be of limited value but here are some Library of Congress lookup details for CCKW TBs/TMs The date at the end is the date entered into the LoC.

Trucks, 6x6 and 6x4 (all Makes): Adjustment and Lubrication of Roller Bearing Type Trunnion Axle Spring Seat Bearings, 2 pages.
PB 86617 - BSIR 9(4):318; 04/23/48

Truck, 2 1/2 ton, 6x6, (GMC CCKW-352, CCKW-353): Lubrication Instructions, 2 pages.
PB 86619 - BSIR 9(4):318; 04/23/48

Unit Replacement and Repair Time Guide for Wheeled Vehicles, 147 pages.
PB 36930 - BSIR 3(9):666; 11/29/46

Truck, 1 1/2-ton, 4x4 (Chevrolet), and Truck, 2 1/2-ton 6x6 (GMC) = Oversize Tie Rod Yoke Bolt, 2 pages.
PB 86628 - BSIR 9(4):317; 04/23/48

Truck, 2½-ton, 6x6, (GMC Model CCKW-353 LWB) Installation of Loading Aid Kit 7069664, for M55 Gun Mount), 9 pages.
PB 36720 - BSIR 3(4):268; 10/25/25

Technical Bulletin, TB 9-1802A-1, 45.
Fits, Tolerances, and Wear Limits for GMC Model "270" Engine, 17 pages.
PB 86550 - BSIR 9(2):180; 04/09/48

Reclamation of Chevrolet and GMC Hub Adjusting Nut and Oil Seal Assemblies, 3 pages.
PB 48330 - BSIR 4(4):330; 01/24/47

These are reclamation bulletins... or how to salvage worn parts... I bet these are interesting.

Reclamation of Glove Compartment Doors on GMC and Chevrolet Vehicles, 2 pages.
PB 86593 - BSIR 9(4):316; 04/23/48

Reclamation of GMC Steam Release Tube and Nut Assembly 143525, and Connector 187715, 3 pages.
PB 86597 - BSIR 9(4):316; 04/23/48

Conversion of GMC 2½-ton 6x6 Truck Transfer Case Inner Bearing Retainer, 3659898 to Type Retainer 591377, 3 pages.
PB 86599 - BSIR 9(2):180; 04/09/48

Reclamation of GMC, Chevrolet, and Similar Split Banjo Type Axle Housings with Damaged Threads, 5 pages.
PB 86603 - BSIR 9(4):316; 04/23/48

Reclamation of GMC 2 1/2-ton, 6x6, Truck Transmission 3rd Speed Gear 2073116 and ??? shaft 2095529, 3 pages.
PB 86604 - BSIR 9(4):317; 04/23/48

Seems that many collages have digital copies of the BSIR online.

Here is a link to the entire digitized series:

http://catalog.hathitrust.org/Record/009487225

Neat stuff... TONS of information regarding what's on microfilm/fiche