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Re: Tow Boss Package
TowBoss begins with an F-350 DRW with PSD engine, automatic tranny, and TowCommand system. With 3.73 or 4.10 axle ratio, the GCWR is 23,000 pounds. But with the 4.30 rear end, the GCWR goes up to 26,000 pounds.
So yeah, basically it's just the 4.30 rear end.
Similar to back in the '94-'97 models, identical pickups with different rear end ratios had different GCWR. 3.55 was 16,000, while 4.10 was 20,000.
GCWR depends on how much weight a tow vehicle can tow while climbing a certain grade at a certain speed without overheating anything. With a 4.30 rear end, you can tow more weight up that mountain at that speed without overheating anything than with lesser rear ends.
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My Sierra Blanca is a '99.5 PSD CrewCab hot-rod Towing Machine! BTS tranny; Ford Severe Duty Air Induction System (AIS); 4" stainless turbo-back exhaust; DP-Tuner tunes flashed into an Edge Evolution tuner; ISSPRO EV gauges and Turbo Temp Monitor (TTM); Auxiliary Idle Controller (AIC); SP-Diesel exhaust brake and torque converter controller. Top Gun front end replacement. I special-ordered it new and plan to drive it until it quits.
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