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#1609196 08/09/2026 9:34 PM
Joined: Jan 2023
Posts: 46
C
'Bolter
'Bolter
C Offline
Joined: Jan 2023
Posts: 46
I’m trying to adjust my 1941 Chevy pickup, model AK brakes and having trouble with the eccentric bolt for the parking brake link.
I have replaced the shoes, wheel cylinders, drums and springs. When reassembling I positioned the eccentric bolts flat parallel to the shoes lining and made sure the shoes are sitting on the shoe pads, within the .002”. With the parking brake cables slacked, I started by centering up the shoes by stepping on the brake pedal a few times. Next, I adjusted the shoes with a very slight drag ( wheel revolves smoothly.) I then pulled the drum to adjust the parking brake link and found that the link slot was barely engaged with the lever and there is not enough rotation in the eccentric bolt to take up the clearance to barely seat up against the links slot.
What am I missing?
Any help would be appreciated.
Thanks,
Ken

Joined: Sep 2009
Posts: 5,823
Gearhead, Stovebolt Tech and Parts Tracker, Mod for Swap Meet and GTT
Gearhead, Stovebolt Tech and Parts Tracker, Mod for Swap Meet and GTT
Joined: Sep 2009
Posts: 5,823
Ken,

The shop manual doesn't provide a complete "connect the dots" list of all the steps in one place for the parking brake adjustments unfortunately. frown You are correct in first properly adjusting the shoes to the drum, but then you need to complete two different parking brake adjustment steps.

The first screenshot pic below, from the 1941 Shop Manual covers the adjustment part you described at the rear brake assembly.

But there's another related step adjusting the parking brake cable lengths (to take out the slack when the lever isn't in contact with the parking brake extension rod), that must be done before the above process. The second screenshot below shows this step described in the shop manual HERE, prior to the rear inside the drum adjustment step. This "cable length adjustment" is what takes out the slack so the link is in contact with the emergency brake extension rod.

The third screenshot is taken from a 1941 Hydraulic Brakes Filmstrip, courtesy of Brad Allen. That picture (and perhaps the filmstrip) hopefully better describes the cable length adjustment step that must be done, before doing the secondary parking brake eccentric bolt adjustment.

Clear as mud???
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~ Dan
1951 Chevy 3 window 3100
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'Bolter
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Thank you for the info. It makes sense adjusting the cable length prior to the bolt adjustment.


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