[Fot] Reline Heavy Shockproof Gear OIl All Sythetic

[Robert Lang]

 Hi - There's the spherical washers as Bob refers to, but there may also be yellow-metal for the thrust washers for the side gears. Later cars like the TR6 got fiber thrust washers, but some of us install the bronze ones used in the TR3/4.
Can't speak to Spitfires, though.
If you have a locker, use the cheap stuff and change the diff oil often! And when you change the oil, examine it closely. That way you stay ahead of any "issues".

Technically, the proper oils will say "yellow-metal safe" but not all that are safe do say so. 

CRC StaLube is special order at the local NAPA. Perfect for street cars.

l8R,Bob Lang

    On Wednesday, April 15, 2020, 5:31:22 PM EDT, Bob Kramer via Fot <fot at autox.team.net> wrote:  
 
 Depends on the diff. The spider gears have bronze cup washers on a stock diff.   The Detroit Locket has some bronze rings.
Bob Kramer

On Wed, Apr 15, 2020 at 4:22 PM Scott Janzen via Fot <fot at autox.team.net> wrote:

Where is there yellow metal/ brass alloy in these diffs?

Sent from my iPhone

> On Apr 15, 2020, at 5:15 PM, Randall via Fot <fot at autox.team.net> wrote:
> 
> You should probably check with Redline; but my understanding is that they do
> not use the sulfur/phosphorous additive that can damage yellow metal.
> 
> According to the white paper at
> https://www.redlineoil.com/Content/files/tech/Gear%20Oil%20Tech%20Info.pdf
> 
> "The extreme pressure chemistry used in many gear oils
> can be corrosive to brass and bronze used in synchronizers
> and bushings. Most gear oils are corrosive at
> temperatures of 200°F. Red Line Gear Oils are non-corrosive
> up to 300°F and the MTL® in excess of 375°F. A
> corrosive gear oil can shorten synchronizer life by half
> and can also contribute to rust problems."
> 
> I don't have a link handy, but I was reading a research paper just the other
> day (published in SAE Transactions) about a "dispersed solid borate"
> additive that reportedly gave greatly reduced wear in big truck rear axles.
> One of the other Redline documents on their website mentions "solid
> microscopic particles", which could be the same thing (or not, just a WAG).
> 
> -- Randall 
> 
> 
> ckproof Gear OIl All Sythetic
>> 
>> https://www.biesheuvel.nl/product/58204-75w250-heavy-shockproo
> f-gear-oil
>> In general GL5 has a higher sulfur content than GL4 has, but 
>> surely GL4 does contain sulfur. 
> 
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