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73-79 gear ratios

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  #1  
Old 08-11-2005, 06:26 PM
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73-79 gear ratios
What gear ratios were offered for 2 wheel drive ford trucks between 1973 and 1979?
 
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Old 08-11-2005, 07:34 PM
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2.75,3.00,3.25,3.50,3.70,4.10
I'm pretty sure that most of these were available. 2.75 is the most common.
 
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Old 08-11-2005, 11:21 PM
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If you scroll down to near the bottom of this a page you will see a list that relates to those years.

http://www.clubfte.com/users/mil1ion...ruckCodes.html
 
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Old 08-12-2005, 10:01 AM
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I had 3.07 gears in my 77 F-100 w/D44. I have never seen this gear in other people trucks before, but I know they have all the one's LxMan1, and I have seen 3.08 gear ratio's too.
 
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Old 08-12-2005, 10:09 AM
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My light duty (6800) 1977 F250 has a Dana 60 in it with a 3.07 ratio. Great for the highway but a little high for towing.
 
Last edited by fasthauler; 08-12-2005 at 10:12 AM. Reason: missing text
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Old 08-12-2005, 12:04 PM
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the tag on my door says 13j,which would mean 2.75(no wonder I can't get off the line very well,no matter what I do to the engine ) my question is,what does the j stand for?
 
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Old 08-12-2005, 12:05 PM
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i believe j is for 460
 
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Old 08-12-2005, 12:18 PM
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Originally Posted by cjben
my question is,what does the j stand for
It stands for power steering.
 
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Old 08-12-2005, 01:10 PM
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The J for the 460 shows up in the 4th digit of the VIN number.

The J after the axle code stands for Power Steering like the previous poster stated.
 
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Old 08-12-2005, 01:57 PM
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I go rearend out of 74 that has 3.44 on the tag, the truck will spin 35's with a stock 400 and auto trans. Has anyone ever heard of 3.44's?
 
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Old 08-12-2005, 02:32 PM
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The type of rear makes a difference what ratio is available in stock gears.

9" vs Dana's
 
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Old 08-12-2005, 03:48 PM
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I"m sorry it's a 9".
 
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Old 08-12-2005, 04:31 PM
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I personally haven't heard of 3.44 gears in a 9", 3.50s is a very popular gear though.
 
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Old 08-13-2005, 08:36 PM
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A higher gear raito is better for towing isn't it? Or am I wrong?
 
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Old 08-13-2005, 08:44 PM
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Yes higher(numatically) is better for towing, but there is such a thing as to high with a small tire. or even with a big tire.
 
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