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2G Rear LSD Upgrade + Bushing Install #350886
April 19, 2011 02:10 am UTC
April 19, 2011 02:10 am UTC
Joined: Mar 1999
Posts: 868
Edmonton, AB
Greg Kelly Offline OP
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So I was having severe wheel hop issues in my 99 GSX last year when launching which ended up causing two snapped axles within a few weeks of one another. I decided to upgrade the differential bushings as a result, and had a friend machine me a custom set out of Delrin.

I also discovered from this video that my factory rear Viscous LSD is completely pooched, so I picked up an Evo 8 rear pumpkin which has a clutch type LSD. I also ordered a 12 plate MAXGRIP upgrade kit which I will be installing for better lockup. This should totally transform the way the car handles and allow it to power-on oversteer much easier and quicker which is swell!

Here's a few pics of my progress so far..

The rear differential bushings:
[Linked Image]

Driveshaft and Exhaust Removed:
[Linked Image]
[Linked Image]

There's the pesky bushings:
[Linked Image]

Subframe out, left bushing is OK, right is destroyed:
[Linked Image]
[Linked Image]
[Linked Image]

The bushing on the diff itself is also toast:
[Linked Image]

Rubbish:
[Linked Image]

Evo 8 LSD vs OEM 2G DSM Open Diff
[Linked Image]
Donor Evo Pumpkin and a 2G NON-LSD pumpkin (required for Evo LSD install):
[img]http://www.gregus.ca/pics/gsx_lsd_bushings_10.JPG[/img]

She's gone byes!
[img]http://www.gregus.ca/pics/gsx_lsd_bushings_11.JPG[/img]


1991 Talon TSi AWD

Re: 2G Rear LSD Upgrade + Bushing Install [Re: Greg Kelly] #350897
April 19, 2011 10:49 am UTC
April 19, 2011 10:49 am UTC
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St. John's, NL
Mike Penton Offline
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Wow Greg, a lot of progress for one night! I wonder if my rear diff bushings are as bad as yours were...


96 TSiAWD: GT3076R, FMIC, 3" turbo-back, FIC 750's, ECM-Link, Devil's own meth kit-11.99 @115.88 MPH
Re: 2G Rear LSD Upgrade + Bushing Install [Re: Mike Penton] #350898
April 19, 2011 11:56 am UTC
April 19, 2011 11:56 am UTC
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St. John's, Newfoundland
Jim Spurrell Offline
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Looks good gregus!

I'm thinking mine are toast too, I got bad wheel hop the night before tranny # 3 blew up LOL


1997 Eagle Talon AWD
1/4 Mile - 11.30 @ 126.65MPH
1/8 Mile - 7.09 @ 98.12MPH
Re: 2G Rear LSD Upgrade + Bushing Install [Re: Jim Spurrell] #350906
April 19, 2011 02:23 pm UTC
April 19, 2011 02:23 pm UTC
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Newmarket, Ontario
Daren Peacock Offline
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Never knew the evo 8 parts could be swapped, good info to know. So it bolts right in to our rear diff housing (only the non LSD version though)? What axles are then required to run?

When I did the awd swap, I installed the UMS urthane diff bushings, so far so good for me, but I'd like to get a stronger diff cover in the future, just to be on the safe side. I'm surprised you didn't take out your cover vs only the axles? (or is that how you destroyed the axles?)


98 Eclipse GSX DSM82HTA
Re: 2G Rear LSD Upgrade + Bushing Install [Re: Daren Peacock] #350925
April 19, 2011 05:09 pm UTC
April 19, 2011 05:09 pm UTC
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Edmonton, AB
Greg Kelly Offline OP
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The LSD unit in the Evo 3-9 rear diffs (Non-ACD only) are all the same.. And yes it will only fit into a NON-LSD DSM pumpkin with NON-LSD axles. The passenger side LSD axle has a longer inboard spline that goes into the differential and it doesn't fit. I believe the drivers side LSD axle will work though.

No damage was done to my diff cover.. just some sheared off axles which i'm hoping was due to the violent wheel hopping in the rear.

I also read somewhere that a Viscous LSD wears out over time as the fluid inside breaks down, and any VLSD with 100k+ on it is likely operating as an open diff! Even when the VLSD is working, it takes on the order of 2-3 seconds before achieving full lockup which is just unacceptable for AutoCross when you're roasting the inside rear tire coming out of a turn.. Now i'll be able to kick the arse out coming out of that turn - yeehaw!

More pics of the 12-plate upgrade and re-installation to follow..


1991 Talon TSi AWD

Re: 2G Rear LSD Upgrade + Bushing Install [Re: Greg Kelly] #350929
April 19, 2011 05:44 pm UTC
April 19, 2011 05:44 pm UTC
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Paradise, NL
Anthony Hiscock Offline
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Wow, awesome!
If your bushings are toast I can't imagine how bad mine are with the mileage on my car.

Who's the 12 plate upgrade from?

Last edited by Anthony Hiscock; April 19, 2011 05:45 pm UTC.

96 Talon TSI AWD - The Gold Digger/Never Ending Build
Re: 2G Rear LSD Upgrade + Bushing Install [Re: Anthony Hiscock] #350951
April 19, 2011 06:26 pm UTC
April 19, 2011 06:26 pm UTC
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Halifax, Nova Scotia
Scott McIntyre Offline
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Originally Posted by Anthony Hiscock
Who's the 12 plate upgrade from?

http://www.weirperformance.com/maxgriplsdkits.html grin


Scott McIntyre
1997 Talon TSi AWD
2008 Mitsu EVO X MR
Re: 2G Rear LSD Upgrade + Bushing Install [Re: Greg Kelly] #363085
October 10, 2011 06:30 pm UTC
October 10, 2011 06:30 pm UTC
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Ontario
Nick Gallo Offline
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Sorry for bringing up a dead threat guys, but how did the swap go Greg? I would love to do this to my non lsd diff. So It's a direct swap just take the guts out of an lsd evo 3-8 and put it in my non lsd housing?


1999 GSX
Re: 2G Rear LSD Upgrade + Bushing Install [Re: Greg Kelly] #363093
October 10, 2011 10:36 pm UTC
October 10, 2011 10:36 pm UTC
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Edmonton, AB
Greg Kelly Offline OP
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Oops forgot to come back and update this.

The upgrade was a success and it works awesome! I still have not installed the 12-plate upgrade but even just the stock Evo LSD made a huge difference in the way the car handles.

Nick since you already have a non-LSD, this is a direct drop in with your existing axles and LSD housing.


1991 Talon TSi AWD

Re: 2G Rear LSD Upgrade + Bushing Install [Re: Greg Kelly] #363096
October 10, 2011 10:59 pm UTC
October 10, 2011 10:59 pm UTC
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Ontario
Nick Gallo Offline
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Okay perfect! I will deffinatley be doing this swap come spring time! Thanks for the write up Greg!


1999 GSX
Re: 2G Rear LSD Upgrade + Bushing Install [Re: Greg Kelly] #363121
October 11, 2011 03:17 pm UTC
October 11, 2011 03:17 pm UTC
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Edmonton, AB
Greg Kelly Offline OP
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No problem if you have any questions when it comes time to do the swap just let me know!


1991 Talon TSi AWD

Re: 2G Rear LSD Upgrade + Bushing Install [Re: Greg Kelly] #363184
October 13, 2011 02:22 am UTC
October 13, 2011 02:22 am UTC
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Oshawa, Ontario, Canada
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Miles Long Offline
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Does this swap work in a 1G AWD ? I think my 93 stock LSD is also toast and was looking for an upgrade for road racing. I know Shep Racing was doing something with an EVO3 upgrade which also required different shafts or cups.


Troppo Loungo
Re: 2G Rear LSD Upgrade + Bushing Install [Re: Greg Kelly] #424654
April 06, 2014 10:36 pm UTC
April 06, 2014 10:36 pm UTC
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Edmonton, AB
Greg Kelly Offline OP
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.............And 3 years later, I finally get back to this and install the Weir Performance 12 plate MAXGRIP LSD upgrade kit!

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

Original plates and center spider section
[Linked Image]

New vs old, 1 extra disc on each side
[Linked Image]

Lick of paint!
[Linked Image]


1991 Talon TSi AWD

Re: 2G Rear LSD Upgrade + Bushing Install [Re: Greg Kelly] #424655
April 06, 2014 10:38 pm UTC
April 06, 2014 10:38 pm UTC
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Los Angeles, California
Alex Akachinskiy Offline
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Outstanding!


1996 Eagle Talon TSi AWD
1999 Eclipse GST Automagic
1991 3000GT VR-4
Re: 2G Rear LSD Upgrade + Bushing Install [Re: Greg Kelly] #424660
April 06, 2014 11:50 pm UTC
April 06, 2014 11:50 pm UTC
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Paradise, NL
Anthony Hiscock Offline
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Looking good b'y.


96 Talon TSI AWD - The Gold Digger/Never Ending Build
Re: 2G Rear LSD Upgrade + Bushing Install [Re: Greg Kelly] #424665
April 07, 2014 12:47 am UTC
April 07, 2014 12:47 am UTC
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Pickering
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Mike Degli Angeli Offline
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Did you re-shim it or just reuse what you had since none of the bearings were changed?




Never fear a challenge,
Amateurs built the Ark,
Professionals built the Titanic.
Re: 2G Rear LSD Upgrade + Bushing Install [Re: Greg Kelly] #424691
April 07, 2014 01:19 pm UTC
April 07, 2014 01:19 pm UTC
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Edmonton, AB
Greg Kelly Offline OP
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Everything went back in as-is. Bearings and diff cover all looked to be in good shape so i'm going to run them!


1991 Talon TSi AWD

Re: 2G Rear LSD Upgrade + Bushing Install [Re: Greg Kelly] #424987
April 12, 2014 05:13 am UTC
April 12, 2014 05:13 am UTC
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St. John's, Newfoundland
Jim Spurrell Offline
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Looks good Greg!!! Anyone selling a rear diff setup? smile


1997 Eagle Talon AWD
1/4 Mile - 11.30 @ 126.65MPH
1/8 Mile - 7.09 @ 98.12MPH

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