New ATB diffs (LSDs) available (GB & GN & GC gearbox

[Mark_Moddy]

Hello all

The batch of new ATB diffs (ie Quaife geared type, not plate type) for Honda GB & GN & GC gearboxes have arrived. These are brand new, quality made aussie LSDs. They are CNC made and are ultra reliable. They are a direct replacement for the standard open diff, and bolt straight in, with NO machining of other gearbox parts required.

They are for gearboxes from a 4&5 speed Series 1 Civic, a 5 speed Series 2 Civic, and an early 5 speed Series 1 Accord.

There are a heap of gear and diff ratios for these gearboxes.
The diff ratios I know off are : 4.91, 4.65, and 4.26.

I have run this LSD in my 1974 Civic rally car for the last 10 years. It performs very well.

The last batch I did several years ago 'sold out' very quickly, especially to buyers in the USA. So be quick if you want one.

Still a few left, but be quick !!!!!!!

[James]

Gday Mark, We can keep this to one thread, just less confusing for everyone

I guess the question on everyones mind is whats the bottom line...

[Mark_Moddy]

Two LSDs sold

Be quick, not many left.

Cheers

Mark

[Mark_Moddy]

Hello all

It's great to see such interest in Honda City Turbos and Series 1 Civics.

Thanks for all your inquiries about the 'Quaife' style LSD. The diffs arrived on Monday.

I can confirm their cost at $1650 each plus postage & insurance. They are a direct replacement and require NO machining of any other gearbox components.

You will not be disappointed. They are FANTASIC and really improve the traction and handling of the City !!!

[Mark_Moddy]

Comments from PJ about the diff :

""You are welcome to post my mouthings on the LSD however I think it unlikely I could recover the old emails because I've had two major computer meltdowns since then and lost most everything.

My memory tells me that the LSD immediately knocked two plus seconds off my best time at the track and allowed me to learn more efficient racing lines. The car can still carry the inside wheels off the pavement in the turns but when the wheels set back down...the steering wheel is not snatched from the drivers grip as before. I recall hearing the revs climbing slowly as the inside the front wheel left the ground, but the engine didn't rev way up...it just climbed a couple of hundred revs and the came back down while the inside wheel was still off the ground. The load was transfered to the outside wheel. I could feel and hear it while I was still in the turn ! I fell in love with the diff. after the first lap. What a great device. I was so impressed with the performance I looked up other pictures of the differential and sent them to all my friends. Unfortunately many of them couldn't grasp the difference between a Quaife and a Posi-track clutch type diff. It is their loss. ""

[James]

I wonder what he means by the last comment, many people consider clutch type diff's to be superior for race use...

[Mark_Moddy]

I have found the Quaife type ATB diffs much easier to drive, especially on the dirt

But, for sure, each to their own driving styles, and car setups.

Have a chat with Deane Buist [[email protected]] from Palmside Motorsports in New Zealand about diffs. He runs a high spec Mk2 Ford Escort and uses a Quaife diff.

[James]

Yeah I have heard the easier to drive comment a few times, I think quaifes are much more like an open diff with more grip rather than a quite different behaviour like a clutch type.