trans. swap
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Senior User
Joined: Apr 2006
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trans. swap
I want to put a 5-speed in my 59'. It has a 223 I6 and 4:56 gears, it sounds like B-17 at full take off power at 45mph. I need the gears, but I want 5. Does anyone know how to make this possible? What is a good heavy duty rock solid 5-speed? If so 4-speed+OD?
Cargo Master
Joined: Aug 2000
Posts: 2,931
Likes: 12
From: SW Michigan
how about a Clark ?
Factory59, how about a Clark 260 or 280 series five speed ? They are way stronger than you will need, but so what ? My Clark 285V has 6.99/4.09/2.24/1.47/1.00 gears in it. There was an overdrive version available that I looked for and never found, but Performance Gear in Lumberton, MO can put the OD gears in a std box for you. As another option, how about putting a GearVendors overdrive/splitter between your transmission and transfer case ? DF, on the work 'puter
Super Moderator
Joined: Apr 2004
Posts: 34,475
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What trans do you have now?
Gear Vendors is going to be expensive, close to $3k or better. Here is their link for 4x4 set ups.
http://www.gearvendors.com/4x4.html
You have 4.56s. Need 'em? A change to 3.50s would make a lot difference, and would probably be cheaper. You still have low range in the TC, so unless you're a rock crawler, something to consider.
As for 5 speeds, the two late model units used by Ford have integral bell housings, (the Mazda and ZF) and won't bolt to your engine.
A Clark with OD would be what to look for.
Forget the 4 speed OD trans from the late '70s and '80s. (I have one) First gear is too high.
Gear Vendors is going to be expensive, close to $3k or better. Here is their link for 4x4 set ups.
http://www.gearvendors.com/4x4.html
You have 4.56s. Need 'em? A change to 3.50s would make a lot difference, and would probably be cheaper. You still have low range in the TC, so unless you're a rock crawler, something to consider.
As for 5 speeds, the two late model units used by Ford have integral bell housings, (the Mazda and ZF) and won't bolt to your engine.
A Clark with OD would be what to look for.
Forget the 4 speed OD trans from the late '70s and '80s. (I have one) First gear is too high.
