Quaiffe diff
Thread Starter
Pro
Joined: Jun 2005
Posts: 671
Likes: 0
From: garden city Long Island new york
Quaiffe diff
Getting a level 6 rpm trans-I see they have Quaiffe differentials they claim accelerate better.I have a 342 gm rear-10yrs old-no probs.Thinking of higher gears for more power down low-anyone recommend the quaiffe vs the gm?How about higher gears?I dont do many 180mph runs anymore...mostly under 100.Looking for a change.D1 procharger old dual int system is what I have w/forged motor-Thanks
Last edited by optimum01; Apr 14, 2011 at 06:13 PM. Reason: spelling
Safety Car
Joined: Apr 2000
Posts: 4,326
Likes: 140
From: Weatherford, TX
I exploded my diff and needed to fix in a hurry, so we did a Quaife. I do like it, and no clutches to worry about. It's not really any faster but it does improve control putting power down. It's hard to describe, with less side to side wiggle and more grip and go.
Melting Slicks
Joined: Nov 2007
Posts: 2,144
Likes: 2
From: Conway AR
Burning Brakes
Joined: Apr 2004
Posts: 1,236
Likes: 2
From: Glendora CA
It feels almost like the torque is moving between the tires, trying to keep them moving at an even speed while you are moving sideways down the street I mean down the track.
Former Vendor
Joined: Feb 2010
Posts: 643
Likes: 0
From: Sioux Falls SD
Premium Supporting Vendor
Joined: Oct 2004
Posts: 23,599
Likes: 1,225
From: Providing the most proven supercharger kits for your C5/6/7 609-752-0321
We have installed a few Quaiffe's and personally I like the new Eaton unit better. Our seasoned racers didnt get a lot of time out of them for the cost.
The Eaton's have both hardened shafts, and no clutches, at a few hundred dollars less. Plus they are a lot lighter.
The Eaton's have both hardened shafts, and no clutches, at a few hundred dollars less. Plus they are a lot lighter.
Melting Slicks
Joined: Nov 2006
Posts: 2,836
Likes: 8
From: Still the Fastest (still running) Stock Bottom End Blown LS1/ 2010 ECS CC 10.50 CHAMP Hamilton, NJ
I know of three guys that put them in, and I know that 2 pulled them out after breaking. Not sure about the third, I think he had problems as well..
Could have been the setup, but I doubt it, they were built by a great shop...
Not for me...
Could have been the setup, but I doubt it, they were built by a great shop...
Not for me...
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Tech Contributor
Joined: Apr 2007
Posts: 10,924
Likes: 78
From: Forney Texas
I just had mine built with the Quaife. Only time will tell.
I have a friend that owned a 6-speed 8.70 second TT Viper and never hurt his Quaife Differential. I think he broke everything else around it, but never the Quaife.
I have a friend that owned a 6-speed 8.70 second TT Viper and never hurt his Quaife Differential. I think he broke everything else around it, but never the Quaife.
Safety Car
Joined: Apr 2000
Posts: 4,326
Likes: 140
From: Weatherford, TX
Pretty sure jbsblownc5 runs one. I believe they have a limited lifetime warranty, fwiw. Sad part is I lost my paperwork for it. 
I wonder what kinda short times the guys ran that broke. Good to know about the Eaton unit, if ever looking for something else.
I wonder what kinda short times the guys ran that broke. Good to know about the Eaton unit, if ever looking for something else.
