Though the modern pickup is a technological marvel, it is far from perfect, especially if you need it to tow or go off-road. Fortunately, there is now a wide variety of automotive after-market products specifically designed to enhance the performance of your four-wheel-drive pickup or sport-utility vehicle. "The Field & Stream Sporting Vehicles Handbook" explains in non-technical language how upgrades to a truck's suspension, transmission, exhaust, and electronic engine controls can yield a dramatic and much-welcomed improvement in towing, load-hauling, and off-road performance. You'll also learn from the experts about such critical bolt-on accessories as winches, auxiliary lights, hitches, and wheels -- in fact, everything you need to turn a stock four-by-four into a real hunting and fishing machine.