One Jeep owner will be randomly selected every month to win a $200 4WD promo card. We’ll also periodically choose one Jeep to feature on the cover of a 4WD catalog and receive a $500 4WD promo card. The catalog cover winner will be a subjective choice made by 4WD Hardware experts–so improve your chances by providing detailed information about your Jeep mods.

You must be 18 years or older and provide a valid email to enter. Please see the complete contest rules at iShop4WD.com for more information. Check out our previous 4WD contest winners here.

Q: John, tell us a little about yourself.
A: I’m 21 years old from Annapolis, Maryland. This past June, I joined the Navy and moved to Pensacola, Florida to begin my training. I just graduated from boot camp and am on my way to being a Navy Information Technology Specialist.

Q: What’s your current vehicle/most recent vehicle?
A: My last car was a 1997 Cadillac Eldorado that I gave to my dad because he needed a car right before I left for the Navy. I have wanted to get a Jeep since my first car but have never been able to afford one.

Q: What plans do you have for the 2010 Jeep JK?
A: All my previous cars got sound system upgrades, so that will be in the future for the JK.

Q: What are your general reactions to the 4WD Jeep Giveaway contest?
A: Winning this contest came at a good time because right now I have no car and will be getting out of my advanced training soon. Plus, my birthday is October 8th so the timing is perfect!

Q: How do you feel about 4Wheel Drive Hardware?
A: I think that 4WD is a great company and I know my uncle has ordered numerous Jeep parts before and never had a problem.

We want to congratulate John on winning the contest and thank everyone else who participated. John is currently embedded in Navy training so his father will be accepting the Jeep on his behalf at the 2010 Off Road Expo in Ontario, California October 9-10.

In the meantime, head over to 4WD.com to get all the Jeep parts and accessories you need for your personal upgrading projects. Thanks again!

Choose which of these Jeep air compressors you think should be installed on the Jeep JK:

VIAIR Constant Duty Onboard Air System

This VIAIR air compressor is one of the most sophisticated options on the market. It’s a constant duty system, which means you can run it for much longer periods of time without having to stop and let it rest. The tank can go from 110-150 PSI in about one minute.

Kit Includes:

• 450C, 100% Duty Cycle Air Compressor
• 2.5 Gallon Tank
• Pressure Switch with Relay
• 1/4″ NPT Drain Cock, Quick Connect Stud, & Quick Connect Coupler

PowerTank 10lb Package C Air System

If you’re looking for a higher performance Jeep air tank, this is it. The PowerTank Package C Air System is built for those lifted off-road vehicles that are sporting tires sized 35″ or larger. It’s especially well-suited for vehicles with higher tire pressures. Best of all, it comes with a slew of accessories.

Kit includes:

• SuperFlow HPX Regulator
• Aluminum 10lb. Powder Coated Tank
• Super Bracket
• Monster Valve Kit

Smittybilt “Dually” Twin Cylinder Portable Air Compressor

The Smittybilt Portable Air Compressor keeps it simple. With this chrome-plated air system, it will only take you about 2 1/2 minutes to inflate a 35″ tire from 10PSI to 35PSI.

Kit Includes:

• Dual Cylinder Compressor
• 10ft. Power Cord with Battery Clamps
• Quick Release 24ft. Coiled Hose with Attached Gauge
• Dual Air Filters

Since this is the last month, we’re putting the finishing touches on the Jeep so we’ll also be installing the following Jeep accessories:

• Bestop Dash Kit: This Bestop Dash Overlay Kit is a great way to upgrade and add finish to the interior of your Jeep.
• WeatherTech Front & Rear Floormats: It’s the most advanced technology used to combat mud, dirt, and spills. We’re installing both the front and rear WeatherTech DigitalFit Floor Liners.
• MasterCraft Grab Handles: For an extra hand when you need it most, trust the quality of MasterCraft Grab Handles. We’ll be installing 4 on the Jeep.
• Daystar Upper & Lower Dash Panels: You’ll have a convenient place to store your cell phone, sunglasses, or other small items thanks to these upper and lower Daystar Dash Panels.
• Daystar Switches: Fit these Daystar switches into your new Daystar lower dash panel for easier recognition.

About VIAIR: VIAIR air compressors have become the industry standard. They’re used in the harshest environments across the globe from the hottest deserts to the most chilling arctic areas.

About PowerTank: It was 1997 when PowerTank developed the first CO2 onboard air system. Since then, they’ve continued to expand on their core foundations: make it fast, make it simple, and make it affordable.

About Smittybilt: Basil Smith, the founder of Smittybilt, was one of the original four wheel drive enthusiasts. Today, his passion for creating 4wd equipment is evident in over 2,000 products.

- Bestop HighRock 4×4 Fender Flares (Front & Rear)
- Bestop HighRock 4×4 Oversize Tire Carrier
- Bestop Trail Rack & Tailgate Assembly
- Bestop Tire Cover
- Bestop HighRock 4×4 Slider Steps

No matter what you want to change about your vehicle, chances are there’s a Jeep drivetrain part to suit your needs. Installing upgraded differentials and other drivetrain parts can offer a number of benefits including increased power, enhanced traction, impact resistance, oil capacity, and strength. This is your second to last chance to vote, so make it count. For the July vote, choose which Jeep differential you want installed on the Jeep JK: Detroit Differentials by Eaton, ARB, or Auburn Gear.

There’s a drivetrain part for just about any scenario. Did you add larger tires and now need to increase your power? A ring and pinion will do the job nicely. Or maybe you want to enhance your traction? Look to lockers for that extra bite. When you upgrade your axle shafts, the end result will be stronger Jeep parts that you won’t worry are going to shatter on you. Don’t forget enhanced differential covers to increase oil capacity and improve impact resistance. You can even get a little bit of all of the above plus some addition physical size by choosing an axle assembly.

Choose which Jeep drivetrain parts should be installed on the 2010 Jeep:

Detroit Truetrac Torque Biasing Differential & Rear Detroit Soft Locker

The unique operation characteristics and enhanced strength of the Detroit Differentials Truetrac limited slip makes it the ideal front axle traction device. This Jeep differential is guaranteed to never lock up on you. Driving in icy, muddy, or wet terrain presents the danger of wheel spin, but the Truetrac will split the torque so this doesn’t happen. We’re pairing this with the Detroit Differentials rear soft locker, which is built to take on severe off-road conditions.

Detroit Differentials Truetrac:

• Limited Slip
• Automatic Torque Biasing
• Clutchless Operation
• Use with 27 Spline Axles and 3.73 and up Gears

Detroit Differentials Soft Locker:

• Dana 44 Detroit Locker
• Automatic Locking
• Use with 3.73 and down Gear

ARB Front & Rear Air Lockers

Installing ARB air lockers in the front and rear actually converts the differential from a standard open style to a full spool type axle at the touch of a button. As a result, this pneumatic locking differential is able to use air to lock both axles and supply 100% power to both wheels, no matter how bad the terrain is. Best of all – you can control the ARB lockers from the inside of your Jeep with just the push of a button, though you will need to have an ARB onboard air compressor.

ARB Front Locker:

• Air Activated Selectable Locker
• Converts from Open Differential to Spool
• Push Button Operation
• Use with 27 Spline Axles and 3.73 and up Gears

ARB Rear Locker:

• Air Activated Selectable Locker
• Converts from Open Differential to Spool
• Push Button Operation
• Use with 30 Spline Axles and 3.73 and down Gears

Auburn Gear ECTED Electrically Activated Front & Rear Lockers

If you can’t decide on just one type of differential, Auburn Gear ECTED front and rear lockers are what you need. ECTED stands for Electronically Controlled Traction Enhancing Differential. This means that you can switch between limited slip and spool options on the fly just by flicking a switch. Unlike other options, these Auburn Gear lockers use currents that are sent to electromagnetic coils, which then create a magnetic field that gives you the solid axle assembly you desire.

Auburn Gear Front Locker:

• Can Shift Modes on the Fly
• Dana 30 Manual Locker
• Use with 27 Spline Axles and 3.73 and up Gears

Auburn Gear Rear Locker:

• Can Shift Modes on the Fly
• Dana 44 Manual Locker
• Use with 30 Spline Axles and 3.73 and down Gears

Plus, we’re going to install some great G2 Axle & Gear drivetrain components to complete the set:

• G2 Axle Front & Rear Ring & Pinion Sets: These G2 Axle ring and pinions are manufactured out of high quality gear steel that will hold up in the harshest of environments.
• G2 Axle Front & Rear Master Overhaul Kits: The easiest way to install the ring and pinion sets is with G2 Axle master overhaul kits. They include all the parts you’ll need.
• G2 Axle Front &Rear Differential Covers: These upgraded G2 Axle differential covers will both cool your oil and increase the strength of your housing.

About Detroit Differentials by Eaton: For years, Detroit Locker Differentials paved its own road in the off-road industry. Now that it’s under the Eaton umbrella, they’ve taken it to the next level.

About ARB: By taking their own vehicles off-road, ARB was able to discover the deficiencies in differentials currently on the market so they can make their own products that much better.

About Auburn Gear: Auburn Gear has been working hard for almost 60 years to provide the best design, development, testing, and manufacturing of differentials to all types of international industries.

If you’re looking for some significant performance gains, a Jeep air intake system is one of the best. Not only will it increase your horsepower and torque, but it will also improve your gas mileage. For the June vote, choose which air intake you want installed on this 2010 Jeep: AIRAID, K&N, or aFe.

Last month we upgraded the exhaust so we could make sure that all the used air will be taken out of the Jeep as quickly as possible. The air intake system is the second part of this process; before you take the air out, you have to make sure you have the right Jeep parts to get the air in. Having a cool air intake system is incredibly beneficial because cooler air is denser, so more air can pass through the system much faster than before. The more air that gets to the engine to mix the fuel, the more combustion there will be and the more efficiently and powerfully your engine will run.

Choose which Jeep air intake should be installed on the Jeep JK:

AIRAID Cool Air Dam Intake System

The mandrel-formed tubing of these AIRAID intake systems are made with the best materials and top-notch production techniques. In addition to having a larger diameter than stock intakes, each AIRAID intake system is powder coated inside and out for a smoother airflow. This also makes it more durable and long lasting.

Benefits:

• Up to 30% more airflow over stock
• Horsepower Gain: 14
• Torque Gain: 24 lbs-ft
• Air Filter is washable and reusable

K&N Fuel Injection Performance Kit

This K&N intake system has a tube that’s specifically designed to be aerodynamic, and it comes with an oversized conical air filter. It gets more cool air to the engine by using a heat shield, which isolates the cool air from the warm. To back up their product, each air intake system comes with a million mile limited warranty.

Benefits:

• 26% more airflow over stock
• Up to 10% increase in power
• Estimated Horsepower Gain: 8.17 at 4807 RPM
• Air Filter is washable and reusable

aFe Stage 2 Cold Air Intake System

The aFe Stage 2 intake system traps heat in two ways: with a powder coated heat shield and a heat-insulating molded plastic tube. These work with the conical air filter to provide as much cool air as possible to the engine. Plus, each air filter is made out of 100% polyurethane so it will last through multiple cleaning cycles.

Benefits:

• 58% more airflow over stock
• Horsepower Gain: 6
• Torque Gain: 8 lbs-ft
• Air Filter is washable and reusable

We’re nearing the end of our contest, but that doesn’t mean we’re overlooking any of the details. In addition to the air filter that you choose, we’ll be installing Bestop HighRock 4×4 Replacement Mirrors as well. These are heavy-duty Jeep accessories that will hold up to the rigors of off-roading.

About AIRAID: Since 2007, AIRAID has been innovating the air filter industry with new and improved products. They’re the recognized leader in air management for both diesel and gas applications.

About K&N: The reusable cotton gauze filter engineered by K&N has revolutionized the industry by making your air filter last longer. This global company is now bringing this technology to consumers around the world.

About aFe: If you’ve got a power-hungry engine, then aFe is the answer. They’ve designed 3 different air intake systems to meet any vehicle’s needs and provide the highest possible performance gains.