Diff Conversion Checklist

Engines, Transmissions & Final Drive questions and answers

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CheyneX5
Racing Driver
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Vehicle: NA6
Location: Melbourne, Victoria, Australia
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Diff Conversion Checklist

Postby CheyneX5 » Tue Jul 09, 2013 11:18 am

Hey Guys,

In the next couple of weeks, I'm going to be performing a diff conversion on my NA6.
I'll be installing a Torsen 2 inside an NB6 housing and have not decided on shafts yet.

I have helped bensale change an NA6 diff for another NA6 diff before but have never installed something bigger into the car.

Apart from the obvious of swapping everything over, is there anything that would possibly come up as a challenge? Things that come to mind are things like removing half shafts, wheel bearings etc.

I'm going to be doing this in a shed with plenty of tools and stands. Also, I should note that the new diff will already be completely assembled with backlash preset etc.

Thanks.
90' NA6 - Classic Red
09' Skoda Octavia vRS TSi Wagon - Race Blue

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hks_kansei
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Joined: Tue Feb 03, 2009 10:43 am
Vehicle: NB8A
Location: Victoria

Re: Diff Conversion Checklist

Postby hks_kansei » Tue Jul 09, 2013 9:51 pm

Only hard part on my car was the hub nuts.

If they've not been removed before, they'll be ungodly tight.

The PPF bolts are apparently pretty tight too, but I never had an issue removing mine (granted...... mine fell out though :P)


Let me know if you need a hand.
1999 Mazda MX5 - 1989 Honda CT110 (for sale) - 1994 Mazda 626 wagon (GF's)

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CheyneX5
Racing Driver
Posts: 1776
Joined: Sun May 18, 2008 8:38 pm
Vehicle: NA6
Location: Melbourne, Victoria, Australia
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Re: Diff Conversion Checklist

Postby CheyneX5 » Wed Jul 10, 2013 11:12 am

Thanks Nik.

I would have thought that bolts to be a challenge. I'll see how Toby and I go with them.

In regards to wheel bearings, are they usually attached to the half shaft already? Or will I need to buy new ones?
90' NA6 - Classic Red
09' Skoda Octavia vRS TSi Wagon - Race Blue

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hks_kansei
Speed Racer
Posts: 6154
Joined: Tue Feb 03, 2009 10:43 am
Vehicle: NB8A
Location: Victoria

Re: Diff Conversion Checklist

Postby hks_kansei » Wed Jul 10, 2013 3:05 pm

Pretty sure the bearings are separate to the shaft (they can be replaced without having to replace the shaft)


With the hub nuts, maybe give them a spray with WD40, CRC or something similar the day before. It should soak in and help un-stick them.
1999 Mazda MX5 - 1989 Honda CT110 (for sale) - 1994 Mazda 626 wagon (GF's)


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