What It Is: The grandaddy of fully automatic locking diffs, it's been a favorite of rockcrawlers and racers alike for decades.
Why It's Cool: A brutal beast, it's virtually unbreakable, and it installs with no special tools. Don't enter the Tank Trap without one.
More Info: www.tractech.com
What It Is: A new line of polished alloy rims designed for trucks and SUVs.
Why It's Cool: They come in sizes ranging from 16x10 up to 22s, so whether you're looking to go dirtin' or dubbin', they've got a rim that's right.
More Info: 800/378-0007, www.mhtwheels.com
What It Is: A performance aftermarket exhaust system to replace the not-so-optimally-tuned stock setup on your truck.
Why It's Cool: Designed to provide maximum exhaust flow, systems such as this can provide increased horsepower and torque, and even improved fuel mileage.
More Info: 734/384-7806, www.dynomax.com
What It Is: An electric cooling fan designed to provide better engine cooling, longer water-pump life, improved A/C operation and less noise.
Why It's Cool: Electric in operation, the fan can improve rear-wheel horsepower by removing the parasitic drag of a belt-driven model.
More Info: 800/851-1510, www.flex-a-lite.com
What It Is: An after-cat exhaust system, available in either aluminized or stainless finish, for better breathing and increased horsepower.
Why It's Cool: Mandrel bends ensure peak airflow, minimized backpressure, and they make your truck sound bitchin' too.
More Info: 951/372-1220, www.gibsonperformance.com
What It Is: A Halon extinguisher that can handle virtually all types of vehicular fires.
Why It's Cool: It's been tested by our own "Neat Stuff" correspondent Jimmy Nylund, who swears you can blow out the candles on your birthday cake with it.
More Info: 415/945-0800, www.h3r.com
What It Is: Complete suspension systems for raising your 4x4, including all brackets, crossmembers, linkages, blocks, U-bolts, and performance shock absorbers.
Why It's Cool: It's a Hecke-va lot easier to install bigger rubber and rims with one of these.
More Info: 800/222-7023, www.heckethorn.com
What It Is: A flat-tappet camshaft with asymmetrical lobes designed to reduce noise and premature valvetrain failure while delivering more area under the power curve.
Why It's Cool: If the name isn't cool enough, an aftermarket cam is a near-must for wheelers looking to bump(stick) up their engine's power.
More Info: 901/365-0950, www.lunaticamshafts.com
What It Is: The latest incarnation of Holley's celebrated carb line, it's designed for four- and six-cylinder engines and tuned for the demands of four-wheeling.
Why It's Cool: It can handle 45-degree inclines and 30-degree sidehills without stalling or flooding, ideal for the Tank Trap.
More Info: 270/781-9741, www.holley.com
What It Is: KC's latest performance off-road driving lights, available in either 130-watt halogen or ultrabright 35-watt HID beams.
Why It's Cool: Their pivoting base allows for flexible mounting, and with Lexan-coated lenses, they're said to be virtually unbreakable.
More Info: 928/635-2607, www.kchilites.com
What It Is: A gift certificate for $500 in LMC Truck parts and accessories. LMC Truck offers a wide variety of parts and accessories for Chevy Blazers or Ford Broncos.
Why It's Cool: You can choose from over 25,000 truck parts and accessories in LMC's catalog.
More Info: 800/562-8782, www.lmctruck.com