A hard pull to the right means a problem with the front right brake shoe or drum. If the problem were with the rear, that tire would lock up and skid. Remove the right front drum and inspect both the drum and the shoe. A small amount of grease or chemical on either will cause the brake to grab. Clean the shoe and drum with sandpaper and brake parts cleaner until no residue remains. Reassemble and readjust both front brakes.

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