C5 Corvette Differential HD, Clutch Pack Pre-load Spring Set

We are pleased to announce another innovative product designed and engineered by DTE, specifically for the Corvette Differential when its used in high performance applications and in all forms of racing. This product is engineered to address and correct the weaknesses of the anemic, crack-prone, O.E. Belleville spring washer set that are used by the manufacturer for differential clutch pack assembly and they provide increased clutch pack clamping load and prolong friction disc durability from less slippage.

The development of this product was initiated to correct pre-mature clutch pack failures we have recently found in the Corvette Differential and to provide increased durability when they are used in high performance applications such as drag racing, road racing and high performance street use.

Anyone who has ever built a Corvette Differential has found that the O.E. pre-load springs are just not up to the task to properly provide enough clamping load to the clutch pack in the differential to withstand the greater heat and stress that high horsepower engine combination produce. It is VERY common to find them to be cracked or broken into multiple pieces due to their brittleness and poor resistance to wear and extreme heat.

Our Severe Duty Clutch Pack Pre-Load Spring Set is manufactured of tool steel and has a very high resistance to wear, deflection over time, clamping load losses from repeated heat cycles and cracking from extreme heat.

Engineered Features of This Product:
-Manufactured of high strength tool steel w/ high carbon-high chromium content
-Forged to increase hardness and material density
-Extremely wear resistant (approx. double that of O.E.)
-Maintains its clamping load force over a greater installed height spread
-No distortion w/ high heat applications
-Temperature resistance of up to 1875* F
-Provides 34% more clutch pack clamping load over O.E. application
-Approx. 910lbs./side clamping force
-Quite operation on turns
-Provides increased posi traction operation and clutch pack life
-Sold in pairs only

$49/pair
Business purchases welcome.

We are now including these new, high strength clutch pack pre-load spring washers in ALL levels of our high performance, purpose built Corvette differentials from now on, to insure that our differentials stand up to the severest conditions applied and to further prove that DTE-built differentials are the best, most durable units on the market today for high performance use.

Our first major run of 250 pieces will be available in 15 business days and shipment will occur immediately thereafter.
http://www.dynotech-eng.com/product_r_d.htm


Best Regards,
Phil Rickard, President
Dynotech Engineering, Inc.

 

Way to go Phil... keep up the great work! :yesnod:

Question for ya... Are all 3 series cases created equal? Check pic below.



As you can tell I got a few (4) diffs waiting to be rebuilt by DTE when they get gears in :jester ... anyway, the diff on the left is a 3.15 and the one on the right is a 3.42... but the cases are definitely different. It appears that the one on the left has strengthened ribbing that supports the trans flange. Is the diff on the left a more desired case? Or do both have a tendency to fail (trans/diff seperation) under heavy load?


[Modified by Bill Reid, 8:48 AM 5/13/2004]

 

Bill-
What you see there is what we refer to around here as a 1 or 3 rib case and they can be found used on both types of differentials cases in the 2 and 3-series versions, at random. We have also documented that starting in 2003, ALL 2 and 3 series cases are designed with 3 rib stengthening, so when someone says "the 2-series cases are weaker", you can tell them that is complete BS. :bs We've been proving differently time and time again for over a year now....

That being said, the 3 rib unit is stronger from a deflection standpoint than the 1 rib unit, but we have still seen them all fail due to case fracture when the case breaks away from the transmission from HP use.

The differences in these cases is what prompted us to develop the Differential Strut and implement cryogenic treatment in our differentials, so now no matter what case one currently has, they will not have to fear case fracture/breakage when racing or running the car hard on the street when these additional components are used in tandem. :)


Best Regards,
Phil, DTE

 

Does the ZO6 rear end (six-speed trans) mate to the A4 trans? Reason I ask is: I was told that the A4's use a seal plate and the M6/12's do not. I simply want to know if a new-from-dealer ZO6 3.42 diff will mate to my 97 A4 trans?

 

:cheers: :cheers: :thumbs:

 

WOW: great info :cheers:

 

jamesge;

the A4 "seal plate" is a seperate piece, and can be removed from the A4 diff (and re-used if needed).

 

:iagree: , What grade TS are ya using?

 

Some of our manufacturing process/engineering information is proprietery. I'm sure you understand. :)

Best Regards,
Phil, DTE

 

Phil - are these being used in my diff?

 

Yes, as ALL of our current and future differentials will include these components in the upgrade process.

Regards,
Phil, DTE

 

Ok,, I gotta ask,, "did my diif get the goodies" ??,,,,,Robin , Phil, what hp range do you suggest one of your strut kit ....Should I be interested in one??

 

Phil,

Nice product. Is this an easy do-it-yourself project or does it require complete disassembly of the rear carrier?

Dope

 

Robin-
Yes, your differential did receive these new components and there is no real "set" HP rating for when one needs to upgrade to the differential strut, because we've seen even mildly modified Corvette's break the drive train when the driver decides to drive a bit "spirited". :jester

Dope-
The installation of these components are in the heart of the differential and require complete disassembly with special tools to install.


Best Regards,
Phil, DTE

 

Phil,

Curious, what's the core on a diff if i wanted to buy one with 3.90 or 4.10 grears all setup and keep mine ?

Thx.

 

sounds like I'll be looking for a strut for A4 when they become available....more money for mod budget....Of course, I never excede the posted limit,or heaven forbid, spin my tires.... :jester :jester ;) :lolg:


[Modified by wrustywrench, 9:22 PM 5/13/2004]

 

Thanks Phil. Considering my built 3.90 rear (from you) is like 7 months old, I think I'll wait till I blow that up before I upgrade it again ;)

Dope

 

Excellent new product. My rear has taken a real beating with all the hard launches it has seen and I get only 1 wheel spinning buring a burnout at times. I will have cartek look into this for me when they rebuild my rear.

 

One-wheel spin is a sure sign that the O.E. pre-load springs have failed, leading to subsequent pre-mature clutch pack failure.


Best Regards,
Phil, DTE

 

Are these good to keep the yang up too?


[Modified by cyclerage23, 10:04 PM 5/13/2004]