Gears ?
I think ford codes changed in 85, I`ll have to check into it. Later Willis
80-86 Axle code decipher
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Junior User
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From: Rockwall, Just East of Da
80-86 Axle code decipher
I am looking at 1984 f250 to purchase. The axle code is 31 per manufacturer's sticker on driver's door jam. Could someone please tell me the ratio for this axle. Thanks.
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From: Beaverton, Oregon
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From: GANS
Unfortionately, axle code 31 is not listed. I think 31 is a Dana 61 3.07. 33 is (at least in 85) a Sterling 3.54, and 35 is a Sterling 4.10.
Best way to find out is look at the tag or the BOM on the diff, or jack it up and count the revolutions.
Best way to find out is look at the tag or the BOM on the diff, or jack it up and count the revolutions.
More Turbo
Joined: Mar 2002
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From: Easthampton, Ma.
#31 is a Dana 6250# Capacity axle with a 3.07 ratio.
This is out of the 1985 Ford truck shop manual.
The only way to tell what model it is, is to retrieve the #'s off the tag affixed to the rear cover.
This is out of the 1985 Ford truck shop manual.
The only way to tell what model it is, is to retrieve the #'s off the tag affixed to the rear cover.
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From: Manheim PA 17545
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From: GANS
I'm am pretty sure that 8lugs is right. Sterling axles didn't have gears lower than 3.54s, so they carried over the dana 61 model. which had a different carrier for 3.07 gears.
I don't think ford changed the codes in '85, they just came up with different codes for the new sterling axles.
I don't think ford changed the codes in '85, they just came up with different codes for the new sterling axles.
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From: GANS
Its nice to have the info available. Btw, have any one of you seen the code "H9B" for differental code? It was on a 94. It was factory track-lok front and rear diff. weird to see that, but nice truck
