Soon after Glenn Yamashiro brought home his brand-new '99 F-250 Super Duty, he had a wrench in hand and was poised to begin modifications. His wife, Shannon, gave her blessing to the project as long as nothing extreme was done. She should've defined extreme to Glenn, because his definition was obviously quite different from hers. This is because Glenn has more than 21 years of experience building quality trucks and he's currently employed by one of the premier four-wheel-drive shops in Southern California, Off Road Unlimited, in Burbank. Glenn modified the Super Duty with a vengeance, leaving no part unanalyzed. This approach wasn't extreme to Glenn. It's just the normal way he builds trucks.
The heart of the front suspension is a pair of custom Atlas 11-inch-lift leaf springs with Con-Ferr articulating shackles. The Dana 50 front axle has been upgraded with Randy's Ring & Pinion 5.38:1 gears and Warn hubs. A pair of Bilstein 7100 Series remote-reservoir shocks resides at each wheel. The shocks are held in place by X-treme Toyz front shock hoops and lower shock brackets and Deist Safety limiting straps keep them from over-extending. The stock track bar was pitched to the curb in favor of a beefy X-treme Toyz track bar. The tall lift and substantial 44-inch tires created the need for some serious steering upgrades, so an ORU crossover steering system was installed, along with ORU's hydraulic ram assist.
Owner: Glenn Yamashiro, Palmdale, California
Vehicle/Model: '99 Ford F-250 Super Duty Crew Cab
Estimated value: N/A
Type: 6.8L SOHC V-10
Aspiration: Fuel injection, K&N Gen II air intake, Gibson after-cat 3-inch-diameter exhaust
Output, hp and torque: N/A
Transmission: 4R100 automatic, TransGo shift kit
Transfer case: BorgWarner 44-06
Front: Custom Atlas 11-inch lift springs, Con-Ferr articulating shackles, two Bilstein 7100 Series remote-reservoir shocks at each wheel, X-Treme Toyz shock hoops and lower brackets, Deist Safety limiting straps
Rear: Custom Atlas 11-inch-lift springs, two Bilstein 7100 Series remote-reservoir shocks at each wheel, X-Treme Toyz dual shock mount and crossmember kit, X-Treme Toyz Slip-Trac traction bars
Front: Dana 50, ORU polished-aluminum differential covers, ORU slotted brake rotors, ORU crossover steering, ORU hydraulic ram assist
Rear: Sterling 10.5-inch, ORU polished-aluminum differential covers, ORU slotted brake rotors
Wheels: 16.5x12 Weld Racing Super Single II
Tires: 44x19.5/16.5 Super Swamper Boggers