I would look at the return springs in the drums and the one on the pedal. Make sure the pedal isn't binding on the pivot.
Also, could you have the shoes adjusted too tight? Especially the left front? Loosen off the adjusters a few clicks and see if the problem goes away.


Current fleet (subject to change w/o notice)
\'49 GMC 3/4-Ton , 60 Austin Healey Frog-eye Sprite (some assembly required), 2011 Dodge Avenger, 2015 Jeep Cherokee. No, they don't all run.
My other ride is a (B737)no, (B767)no, A320.... Update... was Embraer E190, now Boeing B787.

Knowledge is a wonderful thing, but ignorance means you don't know you can't do something.