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Discussion Starter #1
Can someone tell me where I can get a good deal on some
'03 cobra half-shafts for my '99 IRS? And will they fit without any
alterations? Is this a decent setup to run drag slicks with or should I upgrade the axles also?:rolleyes:
 

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They won't work unless you change the diff. The 99's are 28 spline, '01 and '03 are 31 spline.
 

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If you're that mechanically adapted, you can buy the 31 spline side gears and fit them to your existing traction lok differential. You won't have to change the gear setup at all with this method, and it's probably cheaper, however setup is kind of a pain. But, you can get a traction lok differential from Ford that has the 31 spline gears already there for less than 300 bucks.
 

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lo pony,
Say I wanted to put 31 Spline side gears and rebuild my diff at the same time. When I reinstall the diff, is there anything special I have to check specific to gear setup? I know there are shims and measurments one has to do to install gears. Will this have to be done when reinstalling the diff with the same gears?

-Thanks
 
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