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  #31  
Unread 27th January 2019, 04:42 AM
El_Freddo's Avatar
El_Freddo El_Freddo is offline
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Join Date: Aug 2008
Location: Bendigo, Vic
Year: 1988
Model: EJ22'd L series
Transmission: Locking FT4wd 5spd Manual, 4.111:1 diff w 1.59:1 low range & front OBX LSD ;)
Posts: 2,024
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Quote:
Originally Posted by jf1sf5 View Post
El Freddo has an OBX helical that apparently needs to be rebuilt. If you added the cost of the mechanic (thanks to his aknowledge he doesn't need one), then it would be far more expensive than a Quaife.

Cheap is expensive....
True. But also doing thorough research would find that this work needs to be done prior to install. Iím sure itís still doing something, just not as quickly as it once was.

Iím looking forward to pulling it apart. Iíve not had a helical diff apart and I canít quite get my head around how all the worm gears work.

And LSD isnít a locker by any means!

Cheers

Bennie
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  #32  
Unread 27th January 2019, 05:10 AM
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Rally Rally is offline
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Join Date: Jul 2008
Location: Sydney
Year: 2004
Model: SG Forester X 2.5 Turbo
Transmission: D/R 1.446, Twin Lockers, Front LSD, 4.44
Posts: 3,952
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Be very careful disassembling the helical diff. Can be almost as hard reassembling it as getting all the smoke back into a blown circuit!
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  #33  
Unread 28th January 2019, 09:58 PM
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Dulagarl Dulagarl is offline
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Join Date: Aug 2010
Location: Canberra ACT
Year: 2000
Model: EZ30R Forester
Transmission: Dual range manual
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Quote:
Originally Posted by Rally View Post
Interesting. I note you said your engine has a fairly even torque curve. Perhaps that is where a good part of the explanation lies.
Yes I think it might have something to do with it.

I also think the weight of the vehicle and what I carry (e.g. Subaxtreme front and rear bar are heavy, so is 2nd battery, and at times I carry 40 lt water, 20 lt fuel, slab of beer, case of wine and food) has a lot of effect on the 20 KG centre diff. It just isn't as harsh as I expected it to be from reading "accounts" on line. It was installed by All Drive Subaroo, and they thought it would be a good match for the weight of the vehicle.
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