1985 - K5 Silverado. No lift - 31" tires When braking the whole truck shudders really badly, also when braking the truck weaves / pulls from side to side. Not the same side every time, depends on the road. The steering was 'sloppy' when I bought it, not dangerously sloppy, but a good deal of play. So, is it an allignment problem? or a brake problem? or a wheel balancing problem? any info would be appreciated before I spend money trying to fix it. Thanks.