997.2 LSD options

byroncheung · 09-27-2021, 10:36 AM

Have been taking my 997.2 c2s to tracks a couple of times, have started to feel the lack of LSD on the car is limiting me. Last weekend on a skidpad I can hardly get the rear end out if at all.

What are the good LSD options for the car?

Van B. · Van B.'s Garage

I went with a wavetrac. But that was mostly because I was looking for a maintenance free option. If you’re chasing lap times, you need a clutch type setup.

byroncheung · 09-27-2021, 05:42 PM

Quote:

Originally Posted by Van B.

I went with a wavetrac. But that was mostly because I was looking for a maintenance free option. If you’re chasing lap times, you need a clutch type setup.

Is your car pdk? It’s not clear to me if they make one for PDK car with factory open diff…

Van B. · Van B.'s Garage

Ah. No. I’m not fancy like that. I’m in a cable throttle 996 that I have modded so far I can’t even remember what a stock 996 was like. But, about your endeavor. Google a pic of a Pokémon cutaway. It still has a ring and pinion with a planetary gear differential. Honestly I’m surprised PDKs don’t have some fancy eDiff or something like that.

Van B. · Van B.'s Garage

Pokémon hahaha stupid iPad… P.D.K

Van B. · Van B.'s Garage

I just looked and Guard Transmissions makes an LSD for the .2 PDK. Their stuff is clutch pack style and is pretty badass for the track.

byroncheung · 10-08-2021, 07:27 AM

Quote:

Originally Posted by Van B.

I just looked and Guard Transmissions makes an LSD for the .2 PDK. Their stuff is clutch pack style and is pretty badass for the track.

really where did you find that info? i emailed them and they said they don't make one for 997.2 PDK...

Van B. · Van B.'s Garage

Well they would know best. I read that the 997.2 and 991.1 PDK with open diff used the same differential. But, I’ve also read that bearings can be a problem to find for the install.

Matt Monson · 10-14-2021, 04:10 PM

Quote:

Originally Posted by Van B.

Well they would know best. I read that the 997.2 and 991.1 PDK with open diff used the same differential. But, I’ve also read that bearings can be a problem to find for the install.

We make a replacement LSD for the factory LSD as found in cars with PTV.

We do not make an LSD any longer to replace an open differential in a PDK.

Bearings still aren’t available for them, to the best of my knowledge, which was part of our decision to drop the product. All it takes is a clumsy mechanic who destroys a bearing to require an $18,000 replacement gearbox. That happened one too many times for me to make a part that could be implicated is so much financial pain.

Regards,

Matt Monson
guard transmission Llc.

byroncheung · 10-14-2021, 05:22 PM

Quote:

Originally Posted by Matt Monson

We make a replacement LSD for the factory LSD as found in cars with PTV.

We do not make an LSD any longer to replace an open differential in a PDK.

Bearings still aren’t available for them, to the best of my knowledge, which was part of our decision to drop the product. All it takes is a clumsy mechanic who destroys a bearing to require an $18,000 replacement gearbox. That happened one too many times for me to make a part that could be implicated is so much financial pain.

Regards,

Matt Monson
guard transmission Llc.

Thanks for the color Matt!

I found a shop that make a LSD for PDK with open diff, so basically they would be recycling the oem bearing, and, there would be a potential to mess up the bearing in trying to reuse it?