Nordschleifer

The car will go in the shop next Thursday for the LSD rebuilt. After that I will either drive it up here or get it shipped - still undecided. Thanks for all the great feedback.

GTgears

Hello,

This brings up a good point. The 996 uses different ramps than the 997. Take a close look at the factory ramps in that LSD buster thread that was linked. The angles are so steep and the original factory locking percentages leave a lot to be desired. Pretty much EVERY 997 customer I talk to I strongly suggest they install our ramps. If they don't want to spend the money to go that route, if I've got 993 ramps sitting around I'll swap them out for free. Even the old 993 ramps are better than what a 997 GT3 gets from the factory.

The 996 GT3 is another story all together. Unless the car is 100% track driven there's not a lot to be gained by installing our ramps. This will save you $750 on the rebuild work. I'm not in the habit of selling people something they don't need. Just replacing the clutches, plain plates and belleville washers is adequate for a 966 and it runs less than $1000 parts and labor. And while we'll happily rebuild your LSD it doesn't have to be done by us. Any number of good independents who are GT dealers can order the parts and do the work for you onsite without the extra shipping cost of sending an LSD half way across the country.

Based on an inquiry and a little background I was given today I think I know where this car is sitting right now. If it's at the shop I think it is, let them do the LSD rebuild there in house. If you want to confirm my hunch please send me a PM about who has the car right now and I'll let you know if I recommend their work.

Kind Regards,

Matt Monson
Guard Transmission LLC

///Mous3

Hi Matt, are you in Colorado or in Meadow Vista, California? Where are the diffs need to send to for rebuilt?

GTgears

The business moved to Colorado in July of 2009. I apologize for the outdated website. We've got the new one going up shortly.

If you want to send in a differential for rebuilding please be sure to contact us BEFORE shipping it off to us. Then we can be clear what you want done, what it's going to cost, and we can put you on the schedule. If an LSD just shows up on our doorstep unannounced, it is not guaranteed to get the same 48 hour turnaround that we provide to everyone else. Believe it or not I've have LSDs show up with no note, no prior notice and no contact inforation beyond a return address on the box, without a phone number or email anywhere to be found.

cfjan

Matt,

It is interesting to find your comment regarding the ramp in the 997 vs. 996 GT3 LSDs. Sounds like they are quite different and the 996 GT3 LSD's ramp can be re-used and okay compare to the 997 version.

Can you elaborate more on that?

///Mous3

That's what I call trust.

GTgears

Let me get to the office and I'll post a couple of pictures of the ramps.

996FLT6

I got the GT GT2 version 80/80 lsd- not so great in the rain( manageable in the track when smooth but on ****ty highways/streets-scary). Right pic is the stock lsd. On dry dry asphalt- hell yeah!!!! Regards. Mike

GTgears

Well I failed today. Sorry about that. We've been doing physical inventory the last two days and trying to close the 2009 books and dump them on the CPA before Daytona next week. I'll be working tomorrow and swear I'll post pictures of the ramps outside of the bodies so you can see what I mean...

Drmark

I am about to have Porsche Motorsport plates (the "Cup" plates) put in my Mk2 996 as the original OE versions are toast. I am no mechanic but my understanding is that the diff will have the same ramp angles as before but that the "break away" can be adjusted. I would appreciate clarification on that, and any advice on how to set the new plates up. I run the car 80 percent on track, but need it to be easily manageable on the road too - particularly on our (UK) wet and bumpy roads!

Drmark

PS I was a member on the 928 forum for three years, but let it lapse. Now I am back in a Porsche I am signing back up so please don't think I am 362 poster with shallow pockets!
Cheers
Mark

KOAN

Drmark...welcome back!

GTgears

Hello,
How about a few visual aids. I'm going to attach the photos with descriptions and we can chat later...
993

996 GT3

997 GT3 ( my apologies. I didn't realize I had them upside down until I got home and reviewed the photos.

GT 40/60 (compare to 996 GT3)

GT 50/80

And last but not least...
GT 80/80

charlosd

I just bought a GT3 - what are the symptoms of a failing LSD?

996FLT6

^ On track under hard braking the rear wiggles very unplanted- plain scary and powering out and rotating is pigslow. U can jack up one rear wheel with ebrake off( make sure put a plank of wood on front tire to prevent car from moving) and try to turn it either clockwise or counter. If there is no resistence both ways LSD is pretty much fried. Regards. Mike