My '05 2.4 6 spreed export daily driver came stock with 4.11s.
As you all know 2.4 was not the best option as far as KJ engines are concerned.
But this is what I have to work with and changing it is not an option.

I was thinking that maybe changing the rack & pinion to 4,56 would make things better...

I know it's going to be a compromise, power vs top speed and I'm looking for some guidance/feedback.


Is it a good idea to begin with?
Has any one here done that already?

Oh! I'm also planning on having some 245/75/16son n a couple of weeks.(currently running on 255/65/16s)
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It only takes one man to place a trail..

Not sure you can find 4.56 gears for the Dana 30a. If you swith to JBA steel dif then you could.

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Will
05 Limited 4x4 Franky II Al's A-arms Black Moabs with MTR's Remote Start SOLD
06 TJ Rubicon Built
06 Dodge 2500 Diesel - Tow Pig
89 Wrangler not much left stock on it

Why do you say that? Will something like this
http://www.wildhorses4x4.com/product/da ... ons/Dana30
not fit my front diff?

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It only takes one man to place a trail..

No, the KJ's have a DANA 30A front housing and the ring and pinion is a different thickness then the dana 30.

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Will
05 Limited 4x4 Franky II Al's A-arms Black Moabs with MTR's Remote Start SOLD
06 TJ Rubicon Built
06 Dodge 2500 Diesel - Tow Pig
89 Wrangler not much left stock on it

Actually it's the pinion that is longer in the D30A then a regular D30.


Yep you must either get JBA's steel front diff or SFA it to drop lower then 4.10's in a KJ.