Transfer case surgery....

[David_Hayward (RIP)]

I have a Xerox of the GMC Parts List and will see if I can find the transfer case references.

It looks as though we will have a nice little job now comparing cases. The answer may lie in that GMC Pontiac and Chevrolet's Flint assembly plants used Chevrolet axles and cases which were produced by the Chevrolet Axle Plant in Flint as well as bought-in Timken-Detroit and Wisconsin components because Timken and Wisconsin could not produce all requirements.

In advance of my checking, this is from my notes on military GMCs:

"
CCW-353: ENGINE: 270 CU. IN. [35.34 h.p.]; 5-SPEED CLARK GEARBOX; TRANSFER CASE: ONE-SPEED MODIFIED GMC 591321; I-BEAM FRONT AXLE: TIMKEN-DETROIT MODEL 31116-H-X4 AS USED ON AC-502 AND CC-351; REAR AXLES, BANJO, TANDEM BOGIE WITH TORQUE RODS CHEVROLET 3665609 & 3665610.

ACK-353 AND ACKWX–353 248 OR 256 CU IN ENGINE; USED TIMKEN-DETROIT SPLIT-TYPE AXLES FRONT AND REAR SERIES 31000.

CCKW[X]-352/253: ENGINE: 270 CU. IN.; 5-SPEED CLARK GEARBOX; TRANSFER CASE: 2-SPEED CHEVROLET 3659994; FRONT AXLE G.M. FULL-FLOATING WITH BANJO-TYPE HOUSING-BENDIX-WEISS OR RZEPPA C.V. JOINTS; CHEVROLET 3663017 OR TIMKEN-DETROIT [MODEL 31116-H-X4?]/WISCONSIN T-79 TRANSFER CASE AND SPLIT-TYPE AXLES; REAR AXLES FULL-FLOATING, BANJO CHEVROLET 3665609 & 3665610.

The GMC and Chevrolet transfer cases were all listed as being manufactured by Chevrolet. This must be when the Wisconsin part was not used".