front/rear differentials 1990 EB edition

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Aug 4, 2004 | 12:57 PM

brad76f250

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From: dallas, tx

front/rear differentials 1990 EB edition

just wondering what ratio the front and rear are, or how i can find out.

i now its a dana 44 in the front. and probly that in the rear.

Aug 4, 2004 | 03:44 PM

Kemicalburns

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stock is 3.54 up front and 3.55 rear. the rear axle is a 8.8

there should be a little tag on each diff cover if not the vin code in the door jam will also give info. just post what you read here

Aug 4, 2004 | 03:45 PM

InkDawg

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I'm guessin that the 44 is in the front and you have an 8.8 in the rear. Look on the rear and see if it has a speed sensor plug on the front side of it. If it does then its more then likely an 8.8 because a 9" which older broncos were does not have this. Also the 9" comes apart from the front where the 8.8 has bolts on the rear side. But I'd bet money you dont have a 44 in the rear unless someone else put it in. And the gears would be around 3.55.

Aug 4, 2004 | 04:07 PM

brad76f250

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ok cool thanks. gonna check on that.

how hard would it be to put a 44 in the rear?

Aug 4, 2004 | 04:08 PM

Kemicalburns

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why would you want to. doesnt make sense. explain what your goals are and we can help better

Aug 4, 2004 | 04:09 PM

brad76f250

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From: dallas, tx

i dunno... just wondering... no reason

Aug 4, 2004 | 04:24 PM

Kemicalburns

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From: Bend,OR

first it would have to be custom made. you would be better off beefin up the 8.8, swap in a 9" or going to a sterling 10.25 1ton axle. those are your choices