WTT 96 REAR aXLE w 3.55 for superduty 4.10 Wiill it work? - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 01-15-2010, 05:58 AM Thread Starter
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WTT 96 REAR aXLE w 3.55 for superduty 4.10 Wiill it work?


One big Q. I have a 96 PSD single rear axle with a 3.55. I want to move to a 4.10 posi and I found one out of a superduty. Would you just swap 3rd members or would you do the whole swap if both axles were in similar condition and wear? I think Id like the 4wheel discs but I really dont want to change to the newer superduty bolt pattern.

I take it the OBS and superduty axles are interchangeable(width,mounts, etc).

Any experienced ideas I'd appreciate greatly.

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post #2 of 3 Old 01-15-2010, 07:03 AM
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Not sure on widths, etc. but the OBS and SD have different wheel bolt patterns (as you've mentioned.) The OBS has a 10.25" ring gear, and the SD has a 10.5" ring gear. The center sections are interchangable, and the ABS rings are the same. So you could take SD posi, but the gears wouldn't fit.


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post #3 of 3 Old 01-15-2010, 12:35 PM
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i would trade you my 4.10 ls for your 3.55 rear

03 f250 fx4 ccsb 4in exh, Egr delete, coolant filter, sct live wire ts with gearhead tunes
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