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Old Feb 26, 2005 | 11:40 AM
  #1  
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mtm1972
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rear axle type...

I just blew a spider gear/differential pinion. Is there a place where I can decipher the code from the tag on the diff cover? Also, I'll need to order a kit, what's the best place to get it from? Thanks.
 
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Old Feb 26, 2005 | 11:48 AM
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WhëëlMå1
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What did the tag say on the cover? You probably have 3.55 gears, which MOST broncos left the factory with.
 
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Old Feb 26, 2005 | 11:58 AM
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mtm1972
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Tag reads as follows...

S 8 0 8 D
3 55 88 8B22

Does that mean "3.55 8.8"?

Thanks for your help!
 

Last edited by mtm1972; Feb 26, 2005 at 12:00 PM.
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Old Feb 26, 2005 | 12:33 PM
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Yes, precisely. If you had a limited slip unit in there, it would say 3L55.
 
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Old Feb 27, 2005 | 12:11 AM
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just swap in a 9" and be done with it.
 
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Old Feb 27, 2005 | 08:48 AM
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Hey Kemical,
On my truck in sig, I have no rear ABS? (no light when I turn key) Anyways, I figured with all the junkyards full of parts(I live in the rustbelt) I'd swap in a 9". Is there any difference other than abs speed sensor on diff that I need to worry about. Speedo comes from t-case. Thanks, Dave
 
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Old Feb 28, 2005 | 09:21 AM
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nothing else to worry about. I installed a 9 from an 80 bronco. it swapped right in , took about 5hrs with a few parts runs and lunch. the brake hardware from your 8.8 will swap right over to the 9" but the drums are different. i suggest just buying new one drums they are cheap. i was even able to use my stock driveline. just make sure the mounting of your rear part of drivline uses the ujoint and not the flange type.
check my superford page for pics of the swap and install of my 9"
 
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