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2002 996 C4S
 
jcsjcs's Avatar
 
Join Date: Sep 2007
Location: Brooklyn, NY & Waymart, PA
Posts: 489
Garage
Lsd?

What's required to upgrade an non-LSD 911 (in my case '84 911) with a 915 to LSD?

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jcsjcs
Have: '02 996 C4S
Had: '87 944, '84 911 Carrera Targa
Old 03-23-2010, 08:49 AM
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gearhead
 
Join Date: Nov 2007
Location: Loverland, CO
Posts: 23,519
In addition to the differential itself, you will need to reset the preload and backlash on the ring gear when you install it. Not generally something I recommend as a DIY job as it requires some specialized tools and expert knowledge. Most shops will bill 4-6 hours for the job.

It's cheap insurance to get new carrier bearings at the same time. Sidecover and axle seals go without saying. And 2 oil changes worth of oil if it's a brand new LSD. There is a break-in period and you'll want to change your gearoil after 1000 miles or 1 track day, whichever comes first.
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Old 03-23-2010, 09:00 AM
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Registered
 
Join Date: Oct 1999
Posts: 8,673
Would this be for a Quaife?
Old 03-23-2010, 09:55 AM
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2002 996 C4S
 
jcsjcs's Avatar
 
Join Date: Sep 2007
Location: Brooklyn, NY & Waymart, PA
Posts: 489
Garage
Sorry guys - but i am a novice when it comes to LSD and many of the components in my car.

I am in the process of dropping my engine to remove the transmission - as I need it rebuilt.

What specifically do I need to have done if I want to upgrade to LSD?

1) Change the Differential? What's the cost?

2) Have changes made in the 915 transmission?

I know you probably answered in one of the replies above - but I don't quite get it yet.

Thanks for the help. jcsjcs

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jcsjcs
Have: '02 996 C4S
Had: '87 944, '84 911 Carrera Targa
Old 03-23-2010, 11:37 AM
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