fp at this time it would be a srt-6 /slk32 part only as our gears are different than the n/a. if the project gets off the ground and the cost to the builder wasnt too much perhaps a gear change would be available.
it seems the number is 350 hp. the rigors of burnouts and track racing the car seems to find the weak spot which is the pinion gear.
on the n/a cars most folks arent 1/4 mile racing and havent had an issue so it most likley wouldnt be a mod they want for the cost.
hopefully im not speaking out of turn here

 

The part that they will be providing will be compatible with all Crossfires and both the SLK32 and the n/a SLK320. This only replaces the carrier inside the differential housing. You must reuse all the rest, incl. pinion/ring gear(your gear ratio).

Pics added for reference:

 

thanx for the clarification allen!! i was thinking it replaced all the gears. pics helped a ton.

 

I would be very interested in this also..... and will help with shipping. Where do I send a donation?

 

Ok guys, I appreciate the offer. However, I do actually have money to send my unit out. I just wanted to make sure it wasn't for no reason. It appears that there may be enough interested parties that we can get this done.

 

So my question remains; Is there a performance gain? I have no issues with my rear end, so there would have to be a reason for me to do it.

Thanks,

 

allen i never meant to imply you didnt have the funds to do this. only trying to help in a way to get this moving forward. if theres anything i can do let me know

 

I would love to have a LSD. Put me down as interested.

Les

 

While companies claim there is a modest performance gain from a Limited Slip unit. I can't vouch for that. Since our cars use an electronic traction control from the factory, it will apply bakes to the spinning wheel to slow it down to get traction. So in theory, running a 'real' LSD should be benificial. Will you see major gains? probably not. The big benefit for us, is that it is stronger than an open diff... as far as I know 4 of us have blown our rear diffs last month alone.

 

Buggins comment points out the problem with the stock system. THe low traction wheel has a brake applied to increase loading and stop the spinning, thus slowing the engines progress in moving the car forward.

Mommy Mommy, why do I keep running in circles????????

Be still now; or Ill nail your other shoe to the floor!

Enjoy the best weekend of the season so far, 60's clear and sunny , gotta get more garage time, yahooo. Woody

 

Turning off traction control and brake assisted stability(bas) is a simple thing and has been done before. Simply unhooking your yaw sensor and flicking your traction button off turns those nannies off. while maintaining antilock brakes. A true limited slip vs brake applied traction control, I would take a lsd any day of the week.

 

What impact would this have on the traction control? As discussed it seems the stock system brakes the wheel without traction, would a lsd cause problems with this?

 

Spoke with Dana from Autotech again today about the Wavetrac LSD. I am shipping him my complete pumpkin tomorrow. Since I live on the other coast, he wont get it until next week. He said they will give it a preliminary look-over to see if a) they think it is possible, b) the apx. time to build, c) the apx cost.

If we press forward with building, I still need to purchase a stub axle to send them. They will also need a Crossfire axle as you guys don't use stubs like the Benz.

Spread the word so we can get enough people on-board to make this happen!

I will keep you all updated.

 

allen are our axles dif than the srt-6? i ws thinking the whole rear end was the same
theres a wrecked slk32 on ebay we may be able to get some parts from

 

The XF uses a 'standard' style half-shaft that has a snap-ring. They dont use an inner stub axle and a bolt-on cv joint like ours.

There is no difference in the differential unit (I know as I have an '05 SRT-6 junkyard unit in my SLK32). However, they said they want both style axles when it comes to checking fitment "just in case". It's ok, as I think AMX has an old SRT-6 axle that he can send them...

The only problem I see is how our stubs will be held in as an LSD unit is enclosed, so you can't put our c-clip on as it is currently installed. I think the snap-ring method may work fine though.I'll let the engineers figure that out... lol

 

The pics did help out immensly.

Out of the 4 cases of blowns diffs were all of them failed carriers/spider gears...has anyone broke a ring gear or pinion?

Im really excited to see you doing this, as we all know how limited the aftermarket is for our cars. But for $1500 are we sure this is the way to go vs completely replacing our diff with something beefy like what the big v8 guys use. Just askin'...

 

Making this much power on an open diff causes the failure. You wouldn't see these sort of failures with a power LSD. My original factory failure was from the pin backing out or never being installed as there was no pin to be found.



my second failure was from the supplier my warranty company uses. They rebuilt a unit and from what the tech said this was an install issue with the supplier due to bad rebuild.






If this unit gets made it would of solved the issue of why my factory rearend failed...

 

keeping our fingers crossed

 

The sample rear diff is en-route to Autotech. Estimated delivery to them on Tuesday. Fingers crossed here also!

 

UPDATE from Autotech: