1943 Chevrolet Cab 13 C60s Wrecker

[cordenj]

Well I expect this one of those questions with to which the answer is obvious....but here goes as its not to me!

The wrecker has a large winch under the body, I think the same as fitted to many if not all 4x4 models.
It also has twin winches behind the cab as part of the model specific breakdown gear.

So the question I have relates to to the controls on the cab floor.

I have these controls:
1. A standard handbrake to stop vehicle
2. A standard starter lever
3. The usual 4 speed and reverse gear lever
4. the longer lever that provides control top Hi/Low ratio_engage/dis-engage 4-wheel drive_engage drive to the underbody winch
5. The Breakdown specific lever to engage pto chain drive to twin winches behind cab

BUT I cant see how I can brake the main underbody winch. The general Chev truck manual (cab controls drawing from the manual attached) explains how the winch brake should be applied, and the manual photo shows a separate winch handbrake lever...which I don't seem to have.

Any ideas please on how I brake the main winch without the separate winch handbrake?

IMG_8605 (1024x768).jpg Chev_general controls_NOT Wrecker.png