410 or 411 gear ratio Dana 30 and Ford 8.8

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pbarton - 30 Mar 2006 03:46 GMT

Hi,

I need to understand what option to go with. I am putting a Ford 8.8 rear
end on my 97TJ. A typical rear end ratio for the Ford is 410, while on a
Jeep it is 411. Maybe I am off base here, if so, just let me know. Should
I go with a 410 or a 411 ratio? I am currently running 3.55 front D30
with a D35 rear. My new (used) Ford 8.8 is 3.27, so I have to regear
anyways.

Thanks,

paul

pbarton@houston.rr.com

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Jerry Bransford - 30 Mar 2006 06:37 GMT

Having 4.10 and 4.11 in the front and rear axles is normal, there is no
choice, such a difference is normal. Just about every 4x4 has a .01
ratio difference between the front and rear axle and it is because of
the two different ring gear sizes of the front and rear axles. Install
whatever is available, 4.10 or 4.11, in the 8.8 and it will be fine.
3.55 and 3.54, 4.10 and 4.11, 3.73 and 3.74 are all common combinations.

For 33" tires, I'd regear both axles to 4.56 though, and if you plan to
go to 35" tires, I'd regear to 4.88.

Jerry

> Hi,
>
[quoted text clipped - 10 lines]
>
> pbarton@houston.rr.com

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Jerry Bransford
PP-ASEL N6TAY
See the Geezer Jeep at
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pbarton - 31 Mar 2006 02:02 GMT

Hi Jerry,
I understand the greater the number the better off road. If this is my
daily driver, will 4.56 work on the hi-way for me? I am running a 4.0L, 5
speed.
thanks,
paul

> Having 4.10 and 4.11 in the front and rear axles is normal, there is no
> choice, such a difference is normal. Just about every 4x4 has a .01 ratio
[quoted text clipped - 22 lines]
>>
>> pbarton@houston.rr.com

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billy ray - 31 Mar 2006 02:45 GMT

Paul,

Please see chart
http://www.intercotire.com/site63.php

> Hi Jerry,
> I understand the greater the number the better off road. If this is my
[quoted text clipped - 29 lines]
>>>
>>> pbarton@houston.rr.com

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