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      10-04-2016, 04:48 PM   #1
ladius
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Los Angeles differential rebuild shop?

Hello e90post members,

I posted this on bimmerforums, thought I'd check here as well.

I've got an '06 e90 330i and the rear of the car has been making a humming/whining sound that is dependent on the speed (gets louder and faster the faster I go). At the last oil change, the mechanic told me it's the differential that's gone bad. I'm inclined to get a second opinion to see if it's not something with the wheel bearings but in case it is the diff, does anyone know a good shop that can rebuild differentials?

I'm leaning towards a rebuild because I hear this part is faulty and will fail if I bought an OEM part, new or used.
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      10-04-2016, 09:55 PM   #2
princelybug
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Hoopers Rear End
12201 Branford St
Sun Valley, CA 91352
(818) 899-2515
hoopersrearends.com

Toy Shop Transmissions
1292 E 3rd St
Pomona, CA 91766
(909) 620-5849
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      10-05-2016, 11:00 AM   #3
ladius
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Cool, thank you! Have you used either of these shops for a diff rebuild? Just want to hear how your experience was.

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Originally Posted by princelybug View Post
Hoopers Rear End
12201 Branford St
Sun Valley, CA 91352
(818) 899-2515
hoopersrearends.com

Toy Shop Transmissions
1292 E 3rd St
Pomona, CA 91766
(909) 620-5849
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      10-05-2016, 07:28 PM   #4
princelybug
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Hoopers is pretty well known and well regarded. I've dealt with them before. I haven't dealt with Toy Shops before.

Both shops are on Yelp, if you're into that.
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      10-06-2016, 05:35 PM   #5
neoduffer
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Unitrax in Anaheim performed LSD installs for a few folks here.

UNITRAX
2830 E Gretta Lane
Anaheim CA 92806-2512

http://www.gounitrax.com/

I purchased a differential assembly with LSD from Synchrotech/M-Factory in San Dimas. They seem to offer build and reconditioning services as well.

Synchrotech Transmissions Inc
581 Covina Blvd
San Dimas CA 91773

http://www.synchrotech-transmissions.com/About_Us.html
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      10-09-2016, 12:12 PM   #6
ladius
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Thanks, I did see them on Yelp with 5 stars! They're the closest to me so will probably take my car there.

Quote:
Originally Posted by princelybug View Post
Hoopers is pretty well known and well regarded. I've dealt with them before. I haven't dealt with Toy Shops before.

Both shops are on Yelp, if you're into that.
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      10-09-2016, 12:12 PM   #7
ladius
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Cool, thanks for the recommendations! They're both a bit far from me but to know of places people have used, really appreciate it.

Quote:
Originally Posted by neoduffer View Post
Unitrax in Anaheim performed LSD installs for a few folks here.

UNITRAX
2830 E Gretta Lane
Anaheim CA 92806-2512

http://www.gounitrax.com/

I purchased a differential assembly with LSD from Synchrotech/M-Factory in San Dimas. They seem to offer build and reconditioning services as well.

Synchrotech Transmissions Inc
581 Covina Blvd
San Dimas CA 91773

http://www.synchrotech-transmissions.com/About_Us.html
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