Breakdown Light
Chevrolet 3-ton 4x4 134 inch wheelbase
CMP C60S Tractor
The 3-ton C60S 4x4 chassis was used for a number of purposes.
One of them was  'Tractor Breakdown Light '.
Equipt with a Twin Swinging-Boom wrecking crane which could be either      
Gar-Wood  or  Holmes.
Each Boom had a seperate winch and was driven from the power take-off.
The truck below is using the GAR-WOOD crane system which differs from the HOLMES set, mainly in the shape of the Swinging-Booms.and the winch blocking.
See for the HOLMES set; the Diamond T Wrecker.
References.
CANADA'S Fighting vehicles Europe 1943-1945  Editor; W.A.Gregg
The Observer's Fighting Vehicles Directory World War II by Bart H. Vanderveen
The Winch system
The winches are chaindriven from the power take-off
A Lever system makes it possible to controle the winches from both sides
The right-hand side
The left-hand side
The Front axle
The Generator
Wheel size 10.5 x 20 inch
vent hole
Telescopic Brace-legs
A chain for ankering to the vehicle, apin to adjust the hight
The spare wheel is placed in the middle
The cable-winch and Boom details
The rear winch system
Crane details and toolboxes