Thanks Henry for doing due diligence.
I think I'll stick to a 4:11 open diff that I'm having a shop go thru.
Bud
Sent from my Commodore 64
> On Jun 17, 2015, at 6:19 AM, Yellow04 <yellow04@tr4racer.com> wrote:
>
> About 5 minutes of sleuthing about the Internet shows the domain names
> tractionconcepts.com and phantomgrip.com are registered to the same address
> in Florida. It appears John Brown, the owner, shut down phantomgrip.com and
> is now trying to sell the same units under a different name.
>
> Gee, I wonder why...
>
>> -----Original Message-----
>> From: Fot [mailto:fot-bounces@autox.team.net] On Behalf Of Brian
>> Sent: Wednesday, June 17, 2015 5:42 AM
>> To: Bud Rolofson; Jason Sukey
>> Cc: FOT list
>> Subject: Re: [Fot] Quaife for Spitfire/GT6
>>
>> The Traction Concepts model looks like the old Phantom Grip, AKA: phantom
>> slip as in it doesn't work very well. I had the Phantom Grip with the heavy
>> duty springs. It worked for almost one hill climb event. I shipped the diff
>> out
>> to them for their"extreme" treatment. They re-machine the spring seats to
>> accept bigger heavier springs. Again worked for about one hill climb event. I
>> suspect with the dry installation of the friction blocks it took that long
>> for the
>> oil to work in between the blocks and spider gears. This was just my
>> experience with that diff. Maybe with street tires in non-race conditions it
>> may work better. My recommendation is to stay away from that one.
>> Brian
>> ________________________________
>>
>> From: Bud Rolofson <mailto:levilevi@comcast.net>
>> Sent: â??6/â??17/â??2015 12:22 AM
>> To: Jason Sukey <mailto:jsukey@gmail.com>
>> Cc: FOT list <mailto:fot@autox.team.net>
>> Subject: Re: [Fot] Quaife for Spitfire/GT6
>>
>>
>> Jason,
>>
>> Take a look at these options. Marcel uses the Yukon I believe and the other
>> lets you convert your diff to a LSD..
>> I have tried neither but they look like good options to the Quaife.
>>
>> Bud
>>
>>
>> https://www.yukongear.com/Downloads/Manuals/Zip_Locker_Installation_
>> Manual.pdf
>> http://www.importperformanceparts.net/imports/phantomgrip-
>> triumph.html
>>
>>
>> Sent from my Commodore 64
>>
>> On Jun 16, 2015, at 1:50 PM, Jason Sukey <jsukey@gmail.com> wrote:
>>
>>
>>
>> This diff is going to be used for autox, vintage race, and street....I
>> think the Quaife offers the best compromise for me- welded spiders would
>> be a bit too much.
>>
>> Jason
>>
>> On Tue, Jun 16, 2015 at 12:59 PM, Greg And Alison Blake
>> <ablake2@austin.rr.com> wrote:
>>
>>
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