rear gears
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Freshman User
Joined: Feb 2007
Posts: 46
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From: coastal GA.
rear gears
75 f100 I-6 3spd with a nine inch under it.
The question is since i think i see some of that "city truck" orange hidden around what normally would the gear ratio be?
it has always been a I-6 and 3 spd. base -base model
The question is since i think i see some of that "city truck" orange hidden around what normally would the gear ratio be?
it has always been a I-6 and 3 spd. base -base model
Post Fiend
Joined: Mar 2005
Posts: 8,542
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From: Louisiana
I was also currious about that one.
Like Mil1ion said, the rating plate on the drivers side door jam will have the code, or the axle tag it's self(but over 30+ years, there is a good chance it isn't there any more).
IF for some reason it doesn't have either one, then you can jack the rear of the truck up, and mark the tire and driveshaft, and (I'm tired so I could be saying this wrong) if the driveshaft spings 3 1/2 times to one full rotation of the tire, then it is a 3.50 gear ratio or how ever many revolutions of the shaft it takes for one to the tire.
Like Mil1ion said, the rating plate on the drivers side door jam will have the code, or the axle tag it's self(but over 30+ years, there is a good chance it isn't there any more).
IF for some reason it doesn't have either one, then you can jack the rear of the truck up, and mark the tire and driveshaft, and (I'm tired so I could be saying this wrong) if the driveshaft spings 3 1/2 times to one full rotation of the tire, then it is a 3.50 gear ratio or how ever many revolutions of the shaft it takes for one to the tire.
Senior User
Joined: Dec 2006
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Originally Posted by Mil1ion
How ?
VIN #'s don't have axle info in them.
We need the axle tag (to partially confirm) or axle code from the Rating plate to get an idea.
VIN #'s don't have axle info in them.
We need the axle tag (to partially confirm) or axle code from the Rating plate to get an idea.
I apologize for the mix up everyone.
Taylor
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Joined: Jan 2008
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Okay !
That's why I have this page for 77-79's
http://www.clubfte.com/users/mil1ion...ruckCodes.html
That's why I have this page for 77-79's
http://www.clubfte.com/users/mil1ion...ruckCodes.html
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Freshman User
Joined: Feb 2007
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From: coastal GA.
I'll try to get out there today if it isn't raining, i just assumed that it would be 1 of 3 choices, like my mustang was - i thought i saw part of the the paper tag on the door frame
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From: Simi Valley, CA
Originally Posted by duke1992lx
so what do all the numbers signify? 2 rows of numbers on the tag
wdm bf 5ha
00 9 334a
wdm bf 5ha
00 9 334a
1973/79 Ford Light Truck Parts Catalog / Rear Axle - Section 40 / Parts List # 91
Last edited by NumberDummy; Aug 2, 2007 at 04:48 PM.
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