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Old Mar 4, 2006 | 12:58 AM
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md79f-100's Avatar
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Axle question

So I just pulled axles off of a 89 f350 4x4. They look to be a Dana 60 FF high pinion up front a FF 10.25 in the rear. The tag is gone of the axles any idea what the gear ratio would be. The vin is 1FTHF36G0KNB53197. Any help would be appreciated.
 
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Old Mar 4, 2006 | 01:27 PM
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from what I understand, you need the tag that came off the diff. or the front diff.
you can check the gears in the pumpkin along with the spline count.
chiltons can help along with a stop by the local ford dealer, I went the one here in town and they showed and printed spec's for me.
 
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Old Mar 4, 2006 | 01:32 PM
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You'd need either the diff tag or the sticker on the door jam with the axle code.

They are the axles you identified.

Most likely it's a 3.55 rear and 3.54 front - that is the most common...

The easiest way would be to rotate the axle shaft and count the pinion rotation...

Another way is to take the cover off and look for the ratio stamped in the face of the pinion gear.
 
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Old Mar 4, 2006 | 01:56 PM
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on dana axles on the long tube, some where on the under all the gunk there is a bill of materials number. it will tell you what you have, find then number and then look it up on here
http://www.louisvilleoffroad.com/Dan...bers-sp-1.html

edit: only a coupple tell you ratio, sorry about that.
 

Last edited by 76 F-150 390FE; Mar 4, 2006 at 02:05 PM.
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Old Mar 4, 2006 | 02:54 PM
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Axel isn't listed in the Vin. If you had door code from the jam sticker someone would be able to do it quickly. Is there any series of numbers on the right side of the cover on the shaft? But that vin breaks cown as such. I hope any of the following helps.

1FT = Ford Motor company U.S.A.
H = 8501 to 9000 lb F-250 hd or F-350
F36 = F-350/XL/Lariat XLT
G = 7.5L V8 EFI
0 = Check digit
K = Model year 1989
N = Norfolk VA
B53197 = Serial

FRONT - DANA 60 HI-PINION -35 SPLINE AXLES
AXLE INFO Found only in Ford applications. Easy to identify by determining if the pinion enters the housing above the axleshafts centerline.
AXLE POSITION FRONT
PINION TYPE HI-PINION
COVER BOLTS 10.0
AXLE SPLINE COUNT 35.0
RATIO TO USE LOW RATIO CASE 4.56
RING GEAR DIAMETER 9.75
PINION SHAFT DIAMETER 1.63
RING GEAR BOLT QTY - SIZE 12 - 1/2in x 20 thread
PINION SPLINES 29.0
 
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