Disconnect the two cables from the lever and pull the left brake handle. You should be able to pull the cable end back at the bottom near the drum and the handle should return to the seated possition. Now push the brake foot pedal and pull the cable back to verify that the foot pedal returns easily to it's up position. Both these cables should move freely. If they don't replace them. Now to check the lever on the inboard side of the drum. Push the lever forward (no cables attached) and the lever should spring back on it's own. It should snap back quickly. This will tel you if the bushing in the backing plate is seized up or not. If all this pans out OK then you can take apart the drum and look inside. The drum will need to be measured for oversize. I'm not sure of the spec right now. Look at the shoes and check to see if there is enough meat on them. There is also a spec on this. If the drum is oversize replace it, however I have seen some guys shim the anchor end of the shoes with sheet metal. This is the end that doesn't turn. If you still can't find the problem try roughing up the shoes and drum with 120 sandpaper or emory. Lube the pivots and drum seals with Sylglide silicnoe brake lube and seal the drum coverwith Permatex "Right Stuff" . You should have found the problem somewhere in this. I have seen where the cables unravell and fill up with mud and when you pull them they stretch not allowing for full pressure to be applied to the lever. This causes a very lazy rear brake and they won't lock up.
Hope this helps someone.
Hope this helps someone.
