T283 - AE86 differential / LSD problems
03-04-2012, 08:10 PM
Post: #1
T283 - AE86 differential / LSD problems
Guys, I would like to share with you recent problem I had with my differential.
AE86 with stock 4A-GE, stock LSD.
Recently I decided to rebuild complete diff so I went with:
- halfshaft bearings
- all diff bearings
- crush sleeve
- Wier 4.7 final gear
- MAX grip LSD kit http://www.weirperformance.com/maxgriplsdkits.html
- solid pinion spacer

[Image: AEU86 AE86 - T283 - AE86 differential / LSD problems]

[Image: AEU86 AE86 - T283 - AE86 differential / LSD problems]

After rebuilt diff was very stiff. Also it is locked even if the car is not in gear. When parking or on tight turns it did make harsh noise. It was nothing unusual since I already had cars with ATS Deftforce (talking about stiff diff!) and KAAZ 2-way diffs.
I did around 100 laps on track grip driving, 2-3 drift events, one rally on gravel and some winter / show / touge drifting.
After last snow drifting I was driving home slowly when diff started to make grinding noise.
Driving straight - no sound. Powering out of a curve - grinding noise.
Here is video:



So I have removed the diff from the housing and found strange marks:

[Image: AEU86 AE86 - T283 - AE86 differential / LSD problems]

After opening I have found this
[Image: AEU86 AE86 - T283 - AE86 differential / LSD problems]

Broken "satellite" pinion - not sure the name.
[Image: AEU86 AE86 - T283 - AE86 differential / LSD problems]

So I would guess that MAX grip LSD kit with added locking strength and years of drifting caused this.
I went with LSD MAX grip kit, as a cheaper route, but upgraded LSD like TRD or KAAZ might have been better idea.
Well you live, you learn. Smile

Hope this will be fixed this week and car will be on the road again.

Drifting - best fun you can have in your car with your pants on!
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