OS Giken Limited Slip Differential Failure - Why you shouldn't do business with OSG

[ELCID86]

3 words: small claims court.

+1

[danewilson77]

Such a pity.

Standing by for these guys to contact me, asking me to remove this thread....lol.

[az3579]

Such a pity.

Standing by for these guys to contact me, asking me to remove this thread....lol.

Even if they did, I don't think that will happen. Covering up bad customer service is not our style, right boss?

[Avetiso]

Such a pity.

Standing by for these guys to contact me, asking me to remove this thread....lol.

Please post up your respectful, yet stiff and undermining response.

[danewilson77]

Please post up your respectful, yet stiff and undermining response.

If they contact me, you'll know.

No flame suit required!

[Vas]

Man this sucks. I was going to go this route for an LSD since they are great units on other cars.

Keep us updated on the resolution.

[Sockethead]

Kpro has an OS Giken in her 135..
I will say that it's been there for a year and a half with no issues. Over 400 HP at the rear wheels and 16 runs at the drag strip last fall....
VAC Motorsport installed it. I think we'll give them a call and see what they say.

Yea Charlie yours is a 3 clutch M3 style from TMS/ Diffs online

[LivesNearCostco]

Normally with VAC Motorsport, they give you a cam (or sell you two), not the other way around!

Kpro has an OS Giken in her 135..
VAC Motorsport installed it. I think we'll give them a cam and see what they say.

[tkundhi]

Note to original OP, you mentioned the diff has less than 1k miles but not time frame. If it was a recent purchase and you used a credit card call the cc company immediately. Given the information you have shared you have a chance to simply dispute the charge. The timeframe is about 45 days. Much simpler than small claims court.

[wertyu78]

Note to original OP, you mentioned the diff has less than 1k miles but not time frame. If it was a recent purchase and you used a credit card call the cc company immediately. Given the information you have shared you have a chance to simply dispute the charge. The timeframe is about 45 days. Much simpler than small claims court.

I purchased the unit in cash from Minnoe07 on e46fanatics(great guy). The unit I purchased from him was a brand new warranty replacement that OSG sent him after his original unit exploded. OSG claimed that the unit they sent him was a revised unit. Here is a link to the original thread that Minnoe07 posted on E46f after the first LSD exploded:

http://forum.e46fanatics.com/showthread.php?t=1016393

Photos from Minnoe07's thread:







So, that is out of question. In fact, had I not learned about the engineering defect, I would never have contacted OSG to honor any such Warranty. However; this is clearly an engineering deficiency that OSG is well aware of. Apparently OSG has seen this thread (received an email) and they aren't very happy. They've retracted their 30% discount offer and mentioned my burnout video.

They also mentioned that the intended use of their Superlock LSD is for race application only and is not a warrantied item. They claim the only reason the unit was replaced the first time was "out of good faith".

I've spoken to an attorney, and though I didn't purchase the unit new; I am able to pursue OSG under California Law. Whether I will pursue them is still up for grabs. I just moved across the country and started a new job and have a lot going on in my life. The purpose of this thread is to warn others of the defective unit and unethical business practices by OSG.