It depends on what kind of diffs you are getting
> and starting with.
> For instance, the stock open diff uses two identical
> output flanges,
> while the VLSD unit uses a shorter one on one side.
> Some aftermarket
> diffs are made to drop into the open diff, while
> others the vlsd.
>
> As for the helical unit from an S15, in short, it
> won't work.
> (guessing you are eyeballing the ones on ebay) The
> S13/S14 output
> flange's spline shafts are a smaller diameter. S15
> output flanges
> (which aren't even included) won't bolt to your
> axles anyway. I'm
> currently trying to verify the possibility of using
> old Skyline
> output shafts which are relatively cheap/easy to
> get, I just can't
> get a straight answer. Failing that, I'll probably
> end up buying S15
> flanges (cha-ching) and machining/welding them.
>
> You'll need something to smear on the ring gear to
> make sure it's
> meshing correctly (I used spray paint but don't
> recommend it), and
> if it doesn't, you'll need a thicker or thinner
> shim.
this lesson brought to you by Tony from atlanta after his research into the matter <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt='
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