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What dif do you reccomend for fd and why?

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Old 01-28-12, 12:48 PM
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What dif do you reccomend for fd and why?

I searched around but couldnt find a good answer. I've heard a lot about the ford 8.8. But I'm not sure if it bolts right. Looking for more info. I will be doing a 20b swap and am trying to build a drivetrain that can hold up to about 700 rwhp. Any thoughts and info would be greatly appreciated. Thank you
Old 01-28-12, 02:43 PM
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whoops i think i spelt recommend incorrectly... <--that doesnt look right either.... anyway anyone wanna schimme some words in?
Old 01-28-12, 04:17 PM
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cobra diff
Old 01-28-12, 05:26 PM
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Will the cobra diff bolt up to the fd chassis And what axles would be used with this diff
Old 01-28-12, 08:44 PM
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there is a subframe for it but i have not done one myself.
Old 01-28-12, 09:19 PM
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there is a thread somewhere and one guy built an ls1 fd and he made a cobra irs fit in the fd subframe! very detailed. google search "most detailed ls1 fd build" should come up! its a blue fd
Old 01-28-12, 09:29 PM
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Short answer: for that kind of HP you don't just change the diff. You need to upgrade the whole drivetrain.

The Cobra IRS is one of the better options. I suggest spending some time in the 20B and other engine (V8) forums to see what those setups are running.
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