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1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

Transmissions power capabilities?

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Old Nov 15, 2012 | 09:15 AM
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Transmissions power capabilities?

What kind of power will my stock trans in my 51 Ford F5 handle? Would it handle a diesel engine's power/torque? what about the rest of the drivetrain?
 
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Old Nov 15, 2012 | 07:26 PM
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Which transmission do you have in your F-5? There were three options new: 4 speed crashbox, 4 speed synchro, 3 speed heavy duty. The 4 speed synchro is a T98 which was used behind big block V8s. The stock rear axle is probably good to go for whatever you can fit under the hood, but is probably geared really low.
 
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Old Nov 15, 2012 | 09:04 PM
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Does the rear end have a two-speed differential?
 
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Old Nov 16, 2012 | 10:46 AM
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My F5 has a 4-speed un-synchronized trans and the rear axle is a single speed, but im not sure of its ratio, but its very low.
 
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Old Nov 16, 2012 | 11:44 AM
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Your Truck was built to haul heavy loads, day in, day out - If you're going to drive it as it was intended it will handle the power/torque of the deisel engine
You won't be able to rev the engine and dump the clutch like a drag racer
 
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Old Nov 19, 2012 | 10:44 AM
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I believe my trans is a B-W t9, as it is a un-synchronized 4-speed trans. does anyone know if it would handle the power of a IH dt or d360 diesel? if possible id like ta keep the stock trans, but if it comes down to it, im not afraid ta replace it.
 
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