[Fot] Fwd: Broken Diffs

[vfracing at aol.com]

For what it's worth:
Comparison of a welded diff with a Quaff;
I've been running a welded Diff "forever." No problems.  But recently had an opportunity to compare it with a Quaiffe.
Recently my son (Dave Gott) got a TR4 (Bill Throop's car) and installed a Quaife in it.  We were running nose to tail at Thompson and we observed that:
1.  the Quaffe did allow inside wheel spin and hence no power to the outside on VERY tight turns (turn 4 especially).2. the Welded diff caused the rear to kick out upon application of power in the two right handers prior to the straight due to power induced increased slip angle.  Therefore, I had to feather the throttle to keep the car from oversteering and looping.3. In those same two corners, the Quaiffe enabled early application of the throttle and gained on the TR with the welded diff in those corners even though the TR with the welded diff had much more power.
So with respect to these two approaches it's not a case of one being overall better than the other, but a case of the right diff for each track.
Phil Gott

-----Original Message-----
From: Bill Dentinger via Fot <fot at autox.team.net>
To: kaskastner <kaskastner at gmail.com>
Cc: jaboruch <jaboruch at netzero.net>; fot <fot at autox.team.net>
Sent: Tue, Nov 27, 2018 4:40 pm
Subject: Re: [Fot] Fwd: Broken Diffs

And they sure do work.  
Every once in a while at GRATTAN, going through the off camber Turn 3, it would grab and CLUNK like the whole rear end fell out.  I thought it might have broken, but turns out that was well within its character.
Bill Dentinger



-----Original Message-----
From: Kas Kastner <kaskastner at gmail.com>
To: BillDentin at aol.com <billdentin at aol.com>
Cc: Robert Deanes <rfdeanes at gmail.com>; Joe Boruch <jaboruch at netzero.net>; FOT <fot at autox.team.net>
Sent: Tue, Nov 27, 2018 9:55 am
Subject: Re: [Fot] Fwd: Broken Diffs

The Comp. Dept for Triumph paid for the tooling for that diff "No Spin" which later was called the Detroit locker. I remember well arguing with the people on how units would every be ordered  and a guarantee etc. I know one thing though, at the end of the conversation and after a few weeks we had made a limited slip available for the Triumph racers.
Never be beaten by equipment.

On Tue, Nov 27, 2018 at 9:46 AM Bill Dentinger via Fot <fot at autox.team.net> wrote:

"Lincoln Locker" and "Detroit Locker"  synonymous?  I was told mine were "Detroit Lockers", but I had a owner's manual that was called "NO SPIN"
Bill Dentinger

-----Original Message-----
From: Robert Deanes via Fot <fot at autox.team.net>
To: Joe Boruch <jaboruch at netzero.net>
Cc: FoT Triumph <fot at autox.team.net>
Sent: Tue, Nov 27, 2018 8:24 am
Subject: Re: [Fot] Fwd: Broken Diffs

have been racing a welded unit for years with no problems, would like to do one for each gear ratioon the other hand I will have to look at a "Lincoln Locker"  to see what the hype is, sure it is good !

On Tue, Nov 27, 2018 at 1:58 AM Joe Boruch via Fot <fot at autox.team.net> wrote:

Nick, I never got your email(s).  One was forwarded to me.  John Styduhar beat you to the parts, but is willing to work with you for what you may need.  Joe(B)


---------- Forwarded message ---------
From: vintagenick42 via Fot <fot at autox.team.net>
Date: Sun, Nov 25, 2018 at 10:03 PM
Subject: Re: [Fot] Broken Diffs
To: Joe Boruch <jaboruch at netzero.net>, <billdentin at aol.com>
Cc: <fot at autox.team.net>

Joe Check your spam folder....thats where i usually hang out amyway.I sent a request re detroit locker parts. I need a side gear and spring for a "big" TR. Lemme noNick in norcal   Sent via the Samsung Galaxy S7 active, an AT&T 4G LTE smartphone -------- Original message --------From: Joe Boruch via Fot <fot at autox.team.net>Date: 11/23/18 8:29 AM (GMT-08:00)To: billdentin at aol.comCc: fot at autox.team.netSubject: Re: [Fot] Broken Diffs I have a box of Detroit Locker parts sitting around that I should sell.  I think it is parts from 2 diffs, both with cracked carriers.  The internal gears are still usable, if someone is looking for parts.  Joe(B)



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