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

1955 F600 project

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Old Jul 20, 2025 | 12:32 PM
  #1  
bieryj's Avatar
bieryj
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1955 F600 project

Hi all. So I have kind of inherited a project from my dad that was mentioned on here quite a while ago. Unfortunately my dad passed away before anything came of this restoration so I am taking the reins.

https://www.ford-trucks.com/forums/916551-1955-ford-f-600-a.html

I am fairly unfamiliar with these old trucks. I have been doing a lot of digging over the last year or so trying to decide best course of action. I have I believe just about everything as far as body panels so my biggest concern right now is drivetrain.

First this has the 5 speed new process overdrive transmission. I can’t find any information on it at all as far as parts ratios the clutch.

Next the engine. The truck has been sitting for honestly I don’t know how long. With that in mind I am preparing myself for a rebuild. Is there any kind of difference from the big truck engines to the car and pickup engines? It’s a 256 so I’m just trying to figure out what I can and can’t do.
 
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Old Jul 20, 2025 | 01:05 PM
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bmoran4
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First, get yourself the shop manual. It has quite a bit of information to get started with. They are available as reprints, digital formats, and original publications from various places:

https://www.google.com/search?q=1955...ck+shop+manual

The 5 speed light duty with overdrive has the following ratios:

6.247, 3.64, 1.89, 1.00, .798, 6.17

Here is an exploded diagram of the transmission (with group numbers, not full part numbers):



As for the engine, some parts are truck specific, others not so much. A good rebuilder will be familiar with being able to sort through the differences and typically want to source their own parts through their channels and so it wouldn't be a burden on you.
 
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Old Jul 21, 2025 | 12:21 AM
  #3  
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mOROTBREATH
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That trans is rather rare and is a great benefit to that trucks hi-way-ability. Gonna make your life much nicer.
 
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