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1960 - 1962 1/2-ton and 3/4-ton Chevrolet & GMC - torsion bar front end, coil springs in rear.
The 1-ton and bigger trucks, had torsion bar front end, leaf springs in rear.
1963 - 1966 Chevrolet - coil springs front and rear 1/2-ton and 3/4-ton.
The 1-ton trucks had leaf springs rear, coil springs in front.
1963 - 1966 GMC - leaf springs rear, coil springs in front, 1/2-ton, 3/4- and 1-ton
Canadian Trucks, both GMC and Chevy are the same as US built Chevy.
Historical/This I know/60-66 Model Changes
http://67-72chevytrucks.com/vboard/s...d.php?t=351107
1960-1966 Chevy/GMC Pickup Truck Specs & Engine/Trans/Axle ID's
http://67-72chevytrucks.com/vboard/s...d.php?t=327764
1960-66 Chevy/GMC Truck Frame Diagram
http://67-72chevytrucks.com/vboard/s...d.php?t=325736
The 6066 GMC Guy
http://www.6066gmcguy.org/
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