There is an adjustment but more than likely those old looking cables are rusted solid. With a helper, crawl under the truck and look to see if the cables are moving in the sheaths while your helper applies and releases the parking brake. It will be evident as they move quite a bit.

I know that the locking nut in the picture is loose. It isn’t my picture but shows exactly what I am talking about.
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Last edited by Phak1; 01/11/2020 1:31 AM.
Phil
Moderator, The Engine Shop, Interiors and Project Journals

1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube
Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes
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