Dana 44 Front and 9" Rear Ratio Question??

wil4thril · Jan 1, 2010

I've been looking for an answer to this for a bit and have had no luck. (I'm sure someone knows exactly where to look!)

The question:

I want to put a 9" in the rear of my XJ with either 4.86 or 5.14 gears. The problem is that neither of those ratios match a 30/44/60 which uses 4.88 or 5.13. I read an article in one of the off road mags (a long time ago) that said as long as you were within +-.02 you should not have any issues. Does anyone know if this is true?

Thanks in advance.

Will

redneck23ms · Jan 1, 2010

theres no problem with that small amount of difference

dzjeep · Jan 1, 2010

Second that. Difference is 2/100 of a rotation. You end up with more variation turning a corner resulted by the different path traveled by the rear wheels.

4.3LXJ · Jan 1, 2010

Ford ratios have always been close to Dana, but not the same. Go with it. Ford did.

FloydXJ · Jan 1, 2010

Fourth-ed!
I am running 3.50 rear, 3.54 front.

Plus you should end up with hubs, so it will matter even less at higher speeds. I think the "acceptable" number is about 3%-ish difference.

Run it

jbjustin33415 · Jan 1, 2010

i run 5.13 d44 5.14 ford 9" no problems

offroadman83 · Jan 1, 2010

5.38s in the front 44 and 5.43s in the rear 9" ..............no problems

tbburg · Jan 1, 2010

Ford ran the 9-inch/D-44 combo in all their light trucks/broncos for a long time. The 1-2 point difference in ratios makes no difference. It's not a problem.

MaxxXJ · Jan 1, 2010

think my buddy said he is running 4.56's front and rear with his dana 44 and ford 9" combo on 35's

bcmaxx · Jan 2, 2010

MaxxXJ said:
think my buddy said he is running 4.56's front and rear with his dana 44 and ford 9" combo on 35's

Did't know thats even possible?:huh:

KSXJ · Jan 2, 2010

offroadman83 said:
5.38s in the front 44 and 5.43s in the rear 9" ..............no problems

Well I can vouch for that since well its is my old jeep

Borego · Jan 2, 2010

MaxxXJ · Jan 2, 2010

bcmaxx said:
Did't know thats even possible?:huh:

didnt know whats possible? that the front d44 is 4.56's and rear ford 9" is 4.56's? idk man it might be a different gear ratio in the rear. i just heard him sayin he is running 4.56's and wishing he would of went 4.88's. im more than likely a 100% wrong. it was probably just easier for him to say he is running 4.56's . my bad

offroadman83 · Jan 2, 2010

KSXJ said:
Well I can vouch for that since well its is my old jeep

Yup yup:thumbup:

Dana 44 Front and 9" Rear Ratio Question??

wil4thril

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redneck23ms

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dzjeep

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4.3LXJ

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FloydXJ

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jbjustin33415

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offroadman83

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tbburg

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MaxxXJ

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bcmaxx

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KSXJ

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Borego

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MaxxXJ

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offroadman83

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