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Jun 14, 2012 | 07:06 PM

Fabman54

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From: El Cajon CA

2-speed

Hello,
I want to put a 2-speed rear in the truck that is
in the planning stages. (F600)

What was the last year that Ford used a 2-speed.
I would like to find & used the latest year possible.

Thanks JESS

Jun 14, 2012 | 08:18 PM

madrid london

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From: Southern Nevada

try calling eaton, they were used by Ford

Jun 15, 2012 | 12:02 AM

85e150

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Eatons's site still shows two speed axles available:

Drive Axle Single

Looking at "Truck Paper" I find 2 speeds up to '92. My guess is they were available right up to the point the F600 became the F650.

Jun 15, 2012 | 12:05 AM

Fabman54

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From: El Cajon CA

2-speed

Thanks for the suggestion.

Jun 15, 2012 | 12:07 AM

85e150

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The other thing to consider is what wheel you are going to run. You don't want a 10 hole in the back and a 6 in front, so you'd have to look for similar year front and rear axles.

Jun 15, 2012 | 12:13 AM

Fabman54

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From: El Cajon CA

2-speed

Yes I'm finding out lots more to consider. But if I do, It shouln't be
too much trouble. I'm also going to make a 4x4!

Jun 15, 2012 | 12:17 AM

85e150

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You "can't" have a two speed rear axle with a 4x4. Oh sure, you can build it that way, but you will eventually make that mistake and tear the TC or at least a driveshaft out of it.....

Your front axle will have to match the low of the two speed.

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Jun 15, 2012 | 11:35 PM

85e150

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Is this for your '56 F600? What did you decide to do for a motor--I recall the multifueler thread--?

Jun 17, 2012 | 12:17 AM

#10

Fabman54

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From: El Cajon CA

f600

Yes, that was the plan. My plan seems to be very fluid at the moment.

No mulitfuel, just won't fit. I belive my best option is to buy a f600-f800

with a cummins and 4x4. Swap the 56 cab on the 4x4 chassis.

Jul 15, 2012 | 12:12 AM

#11

muscletruck7379

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From: Harrisburg, NE

you coul always go out and find a 2 speed brownie. it would just have to be before a divorced x-case. my dad has a 57 gmc 650 that came with a powerglide and a 2 speed brownie that had a 1:1 and a 2:1 gear. it was a rather odd animal, since somebody put a 307 small block and a 4 speed in it.