[Fot] Spit/GT6 diff stub shafts

[Anthony Parker]

Thanks for the responses everybody.


I just had the privilege of paying a 38% tax to the US government for a diff from merry old England.

NOT HAPPY.




________________________________
From: Scott Janzen <sjanzen at me.com>
Sent: Monday, May 26, 2025 9:30 PM
To: Anthony Parker <solarant at hotmail.com>
Cc: Triumph FOT <fot at autox.team.net>
Subject: Re: [Fot] Spit/GT6 diff stub shafts

I’m assuming the bolt got inserted to get the remains of the stub axle out of the differential?

So, in over 10 years of racing my GT6, I have never sheared a stub axle (just jinxed myself).
The engine puts out about 200 hp.
That said, I know others who have had this problem repeatedly. They finally gave up and installed a Subaru differential.
I’m really not sure what differentiated my outcome from theirs. I’ve run mostly a welded diff but also a limited slip.
I’d suggest the following:
Pick up a handful of stub axles and get them all crack tested. I don’t mean with dye- take them somewhere that can magnaflux them .
Secondly, you might try getting them cryogenically treated. I just had two sets treated that way, along with the ring and pinion - those I have had repeated failures on.
Let us know what you figure out!
Scott Janzen


On May 26, 2025, at 8:27 PM, Anthony Parker via Fot <fot at autox.team.net> wrote:


Are there any stock stub shafts that are stronger than others?
Are there any aftermarket suppliers of these?

Thank you, Anthony.




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