[Fot] Final drive (differential) oil

[Joe]

I’ve been using Redline Heavy Shockproof gear oil in my TR3 with a TranX diff.  I use Amsoil Severe gear in my Miata with a Torsen diff.  JoeB

Sent from my iPhone

> On Aug 9, 2022, at 10:10 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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