[Fot] Final drive (differential) oil

[Mike Harmuth]

No attachment, I just pasted the text from a note John sent to me.

mike

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On Wed, Aug 10, 2022 at 10:31 AM <vfracing at aol.com> wrote:

> Thanks, Mike;
>
> Was there an attachment? It did not come through.
>
> I'm using Redline MT90 in the W-58 transmission.  We found that the AC
> Delco "Synchromesh" gear oil works well in the Triumph box.
>
> Phil
>
>
> -----Original Message-----
> From: Mike Harmuth <ofracer at gmail.com>
> To: Philip Gott <vfracing at aol.com>
> Cc: Friends Of Triumph <fot at autox.team.net>
> Sent: Wed, Aug 10, 2022 8:57 am
> Subject: Re: [Fot] Final drive (differential) oil
>
> Hi Phil, this is what John at Quantium sent me about trans and diff oils.
> I couldn't find the Sta-lube in the US but had no problem getting a couple
> of quarts of it via Flea Bay from Canada.
>
> For the diffs we found the CRC Sta-lube brand 85W90 is a high quality GL4
> spec oil or you can use the Redline 75W90 synthetic (even though it says
> GL5).
> For the transmissions you might want to switch to the Redline MTL or MT90
> spec synthetic oils.
>
> mike h
>
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> On Tue, Aug 9, 2022 at 10:07 PM Philip Gott via Fot <fot at autox.team.net>
> wrote:
>
> Amici:
> At the risk of opening Pandora’s box, May I ask what gear oil you would
> recommend for the rear end in my TR4A (solid axle)? I am running Mobil 1
> 75-140 and found some metal flakes on my magnetic filler plug after Pitt
> Race. Usually there are some whiskers, but the metal flakes are concerning.
> The rear end is a welded diff carrying a relatively new (3 seasons) 4.1
> gear set.  I have yet to pull the cover. Backlash seems “normal.” The rear
> end was set up by Quantum Mechanics whom I trust.
> What do you all run for oil (brand and viscosity) and what is your
> experience?
> Thanks and regards,
> Phil
>
> Sent from my iPhone
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