I just swapped in new axles, and had to disconnect the rear brakes and bleed them. I bled them quite a bit but the pedal is still soft. The problem is I was driving and hit the brakes and the brake light came on and stayed on. Is the brake system connected to the light in some way, truck is a '77. Or is this some other dash light malfunction? The brake pedal is still soft and i bled enough fluid through to where it comes out clean now. Would one of those bleeders you can get for like $40 at the auto parts store bleed the brakes well? Or is it better to just take it to a shop?