[Es2] V8 torsen rear diff on coupe S2
mark.wetzel at verizon.net
Mon Jun 20 23:25:08 EDT 2005
Sounds very interesting and a neato upgrade. Any thoughts on doing this to an 013 diff? I currently have that in my Coupe, although I am most likely going to put the A/S LS unit back in(trans too).
On a separate note, anyone have experience with putting an 013 in a Coupe? Everything sort of works, but the axles are actually too long I found out. Anyone else run into this?
>From: Elijahallen92 at aol.com
>Date: Mon Jun 20 19:14:16 CDT 2005
>To: es2 at audifans.com, billzcat1 at hotmail.com, contact at euro-audi-parts.com
>Subject: [Es2] V8 torsen rear diff on coupe S2
>Ok guys, this seems like a very good upgrade for our cars, especially the
>ones making big power because of wheel spin coming out of corners. This was
>posted on the S2 forum and the directions look pretty straight forward. I would
>like to do this but don't have time and or the right equipment/knowledge to
>feel comfortable doing it. Anyone out the want to whip up a batch of these?
>There have been so many custom group buys lately I thought maybe someone would
>like to do this one.
>Here's a small how-to on swapping the open S2 diff for a V8 torsen one.
>I'll start this at the point where you have both diffs in front of you on
>- Drain all the oil from both diff's
>- Remove both the driveshaft flanges from both diff's
>- Remove the casing-cover that sits behind the driveshaft flange, on both
>diff's. That casing is bolted to the diff housing itself with 9 bolts.
>- Remove both diffs out of it's housing
>- Then remove the O-ring seal at the far end of the diff housing from both
>the V8 diff and S2 diff.
>The reason for that; is that one of the two driveshaft flanges from the S2
>is different then from the V8. The V8 driveshaft flange has a thicker diameter
>at the point where it seals with the O-ring. We need the V8 driveshaft
>flange eventually on the S2 diff housing.
>These O-rings are metal, and are pressed in the diff housing. They can be
>removed by driving them out with a pendriver and a hamer from the inside out.
>Ofcourse it will be better to replace the V8 O-ring with a new O-ring. Just
>make sure its not damaged if you use it or dried out.
>- Press the V8 O-ring in the S2 diff housing. You will notice that the
>inside diameter from the V8 O-ring is bigger then the S2 O-ring.
>- Passing on to the diffs itself.
>- Remove the crown wheels from both diff's (bolted with 10 bolts). And swap
>them around. So S2 crown wheel onto the V8 Torsen Diff. Retighten the bolts
>at xx NM (will need to check what NM's I tightened the bolts)
>- Drop the V8 Torsen diff in its new S2 housing
>- Make sure all bearings are clean. Apply some liquid gasket on the surface
>where the casing-cover meets the diff casing. Then put the casing-cover to
>close the diff again.
>- Retighten the 9 bolts
>- Mount the V8 driveshaft flange on the side were you swapped the O-ring
>And on the other side IIRC the S2 driveshaft can be fitted.
>- retighten the bolts from both shaft flanges
>- Check if there's any play on the diff bearings and that it turns easily
>- Fill the diff with some fresh oil. And check for leaks.
>- Get it back under the car asap!! And while you're at it, throw in a
>powerflex diff rubber aswell.
>Enjoy some sideways actions!!
>I'm not responsible if there's a failure because someone used this method to
>swap his diff. If you do this swap, use your common sence and check every
>step for yourself.
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