For the past several months, we here at Jp Magazine have assembled a crack team of experts to gather information in a laboratory setting to bring you the most complete, widespread, and amazing information on big Jeep parts ever. From Alaska to Florida, we covered the 50 states via high-tech information-gathering devices called "computers." As a result, we have compiled information on shops that can help you if : a) you need big parts for a 42-inch tire (or bigger) burning beast of a Jeep project you are building in the garage, or b) you simply enjoy window shopping for sick custom components designed to survive under the most brutal trail-born torture tests. Check out the results, and check out the big Jeep shop nearest you on foot or via the Internet.
Advance Adapters
Specialty: Makers of virtually any drivetrain adapter, but, more specifically, the Atlas II T-case with gearing ranges from 2.0-6.0 and the Atlas four-speed with gearing choices between 2.0-10.34. There's also a divorced Atlas II for the mud and long-wheelbase crowd.
Contact: 800/350-2223, www.advanceadapters.com
Where: Paso Robles, California
Alaska Fab Shop
Specialty: Just south of Santa's workshop, these folks build hard-core parts for big Jeep axle applications. From billet steering arms for Dana 60/70s, full hydro-steering brackets, DIY fabrication parts, to custom in-house tube work, and even a few T-case and transmission adapters, these Alaskans can do it all even at 50 degrees below zero.
Contact: 907/398-3569, www.akfabshop.com
Where: Soldotna, Alaska
Antelope Valley Equipment & Truck PartsSpecialty:
NOS, used, rebuilt and new, 2 1/2-ton axle parts, and parts for other military spec Jeeps-including MBs, M38s, A1s, M715s, and Deuces.
Contact: 800/521-8518, www.avettruck.com
Where: Lancaster, California
Barstow Truck Parts
Specialty: U.S. military surplus 2 1/2-ton and 5-ton axles, parts, transmissions, engines, transfer cases, and so on. With items ranging from sheets of canvas to complete bulldozers and everything in between, Barstow Truck Parts is the largest military surplus yard on the West Coast and can help you get the big Jeep parts you need, even if they don't have it in stock.
Contact: 760/256-1086,www.barstowtruckparts.com
Where: Barstow, California
Boyce Equipment
Specialty: Complete vehicles and military parts, Dana 60/70s, GM Corporate 14-bolts, Rockwell axles, as well as parts. Lockers, shafts, and gears for any of the above axles are also available along with custom-built wheels, used military tires, and big military winches. Boyce Equipment has been a source for your big Jeep parts for 40 years.
Contact: 800/748-4269,www.boyceequipment.com
Where: Ogden, Utah
Chuck's Trucks
Specialty: From the land of the alligator-filled swamps of Florida comes 2 1/2-ton axles and parts from locking hubs, brakes, and bearings. Also featuring big transfer cases, big wheels, and complete monster-truck-sized trucks. Chuck, err, somebody who works there can help you get the big parts you might need.
Contact: 407/650-3802,www.chuckstrucks.net
Where: Orlando, Florida
Differential Engineering Inc.
Specialty: Sick custom axles including drool-inducing portal 9-inch Ford axles using hummer components, Deuce-and-a-half axles with outboard disc brakes, tandem 9-inch Ford axles, as well as Custom Dana 60/70, and parts. Differential Engineering can help turn your awesome ideas into well-engineered parts for your big Jeep build.Contact: 863/294-7602,www.differentialeng.com
Where: Winter Haven, Florida
Dynatrac
Specialty: High-quality Dana 60, 70, and 80 front and rear axle assemblies with your choice of mild to wild shafts, brackets, or tube thicknesses.
Contact: 714/596-4461, www.dynatrac.com
Where: Huntington Beach, California
Gearhart Engineering
Specialty: Rockwell axle components from completely stock axles to hybrid monster 2 1/2-tons running oversized shafts and steering knuckles. Also carries disc brake and pinion brake setups and more
Contact: 269/278-6945
Where: Three Rivers, Michigan
Gear Tech Heavy Duty
Specialty: Heavy-duty and custom axle assemblies, from stock or rebuilt 14-bolts to Dana 60 fronts featuring Rockcrusher centersections. Gear Tech Heavy Duty also has disc brake conversions, hub conversions, steering arms, and drivetrain components.
Contact: 601/898-4552, www.geartechhd.com
Where: Madison, Mississippi
High Impact Transmission & Gear
Specialty: Carries the famous Klune-V underdrive planetary gearbox as well as NV4500 and heavy-duty transmission-swap components.
Contact: 888/898-4331,www.high-impact.net
Where: Camino, California
JB Conversions
Specialty: Makers of several T-case and transmission adapters as well as several low-range T-case gearsets, but it's the Lomax 3.0:1 NP205 kit, including a new case that's the big item for the huge-tire crowd. Now you can keep your 32-spline NP205 shafts but with a much better 3.0:1 Low, or you can order a complete, ready-to-go 3.0:1 Lomax 205.
Contact: 337/625-2379,www.jbconversions.com
Where: Sulphur, Louisiana
Off Road Design
Specialty: The originator of the NP203-to-NP205 T-case doubler. Also manufactures heavy-duty steering arms for Dana 60 axles, twin- and triple-stick kits, and a mountain of other hard-core, heavy-duty parts.
Contact: 970/945-7777,www.offroaddesign.com
Where: Carbondale, Colorado
Ouverson Engineering and Machine
Specialty: Custom 2 1/2-ton, 2-inch diameter (and stock) alloy axleshafts, spools, lockers, locking hubs, and awesome Super 8 1-ton Chevy eight-lug disc brake conversion for the deuce-and-a-half axles. Pinion brakes and lots of other heavy-duty stuff for Rockwell 2 1/2-ton axles and Dana 60/70.
Contact: 320/983-3030,www.ouversonengineering.com
Where: Milaca, Minnesota
PSC Motorsports
Specialty: Hydro-assist and full hydraulic steering setups including box, pump, ram, and orbital valves. Big tires, no problem.
Contact: 817/270-0102,www.pscmotorsports.com
Where: Azle, Texas
Sam Winer Motors Inc.
Specialty: New and used parts for Rockwell and Spicer axles. Military winches, vehicles, trailers, airport tugs, 800hp engines, you name it. Plenty of big Jeep parts for your big Jeep build.
Contact: 330/628-4881,www.samwinermotors.com
Where: Akron, Ohio
Stak 4x4
Specialty: Insanely cool two- and three-speed transfer cases. The Monster Box is a three-speed T-case with gear choices ranging from 1.0-5.44 with a split in between. There's even a 0.79:1 Overdrive version available for the 6.72:1 Rockwell crowd.
Contact: 915/584-2400, www.stak4x4.com
Where: El Paso, Texas
TRB Machine
Specialty: Tractor-pulling parts that should be...umm, maybe...yes, more than adequate to get your big Jeep project across the line with a "full pull." Sick Custom axleshafts with oversized U-joints made for high-horsepower applications. Other awesome custom heavy-duty parts, including gearboxes and reversers, aren't a problem. This site also has a classified section where you can find all sorts of used pulling parts.
Contact: 616/875-7673, www.trbmachine.com
Where: Zeeland, Michigan
USA6x6
Specialty:USA6x6 specializes in building custom six-wheel-drive vehicles, and the company also carries an impressive assortment of Rockwell axle parts including wheel and pinion brakes, high-clearance diff covers, military tires, and custom-built double bead lock wheels. USA6x6 can even build you a turnkey, fire-breathing, six-wheeled big Jeep of your own.
Contact: 580/351-0600, www.usa6x6.com
Where: Lawton, Oklahoma