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post #1 of 7 Old 09-16-2008, 07:33 PM Thread Starter
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How do I?

find the gear ratio's in the axles on a 1996 F-350. Ive been looking at one quite a bit and it is in like excellent condition and im really interested in it
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post #2 of 7 Old 09-16-2008, 07:35 PM
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If you look on the drivers side door sill there should be a code on it then you look up the code in the manual and it tells you what gears you have

03 king ranch w/ a cummins
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post #3 of 7 Old 09-16-2008, 07:40 PM
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If if runs 2000 rpm's at 55 mph then more than likely it has 4.11's. If it's different then it probably has 3.55's. Or you can crawl under the truck and look at the dif tag.
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post #4 of 7 Old 09-16-2008, 07:41 PM
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There should be a tag attached to one of the bolts on the diff cover. Sometimes they are gone if the cover has been removed at some point though. Check the link below it gives you the codes and location of the tag. I assume the codes on the door would be decoded the same.
FORDification.com - Decoding Your Ford Rearend's Axle Tag - Page 17 of 17

"When everything is said and done, there will always be more said than done." - unknown
"whether you believe you can or you can't, you are exactly right" - Henry Ford ____________________________________________
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94.5 Ext cab, LB 250, 4X4, 5 speed, Bone Stock
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post #5 of 7 Old 09-16-2008, 07:44 PM Thread Starter
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WOW thanks for all the quick replies tomorrow i will deffinately get under their and look
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post #6 of 7 Old 09-16-2008, 07:58 PM
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If its stock your are either going to have 4.10's or 3.55's

If you have limited slip the diff tag will read 4L10 or 3L55 (L being the tip off )

'97 F-250 PSD, 4x4, ZF-5...Few Doo Dads
Tuned by TW - www.totaldieselperformance.com -- SOLD

'09 F-250 6.4L, FX4, CCLB, 4" Pure Performance 4-Link Suspension Lift, 325/60/20 Goodyear Duratracs -- SOLD

'14 F-350 6.7L, Lariat, CCLB

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post #7 of 7 Old 09-16-2008, 08:28 PM
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If you have a 5 speed, and run 2k at 65mph then you have 3.54's.

99 F350 CCLB 67k miles.

Sold: 01 Dodge cummins ECLB a few more mods to 353hp

Sold: 97 F250 SCLB, 5 speed 2wd. minor mods to 327hp

See a pattern? next I will have to find one of those 6 door jobbers...
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