What size truck? 1/2 ton?
The service manual covers the brakes pretty well. If 1/2 ton, they're the same up thru about 1970. The parking brake cable should have a barrel shaped piece on the end that clips into the actuator arm for the parking brakes. If you get it clipped in correctly, it shouldn't come loose.


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.