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TR2/3/3A Paint Dab on Diff Cover

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Geo Hahn

Geo Hahn

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I seem to recall hearing/reading that the diff ratio was indicated by a dab of paint on the diff cover. Green (my recollection) indicated the 3.7 - my question is what color would have indicated a 4.1 diff?

Note: I am not asking how to tell what ratio the car has (that is easy enough to determine) -- just what, if any, paint marks would go with the 4.1 rear end.
 
M_Pied_Lourd

M_Pied_Lourd

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I have the 4.1 in mine Geo but didn't see any paint markings when I restored it unfortunately .

Cheers
Tush
 
M

mallard

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White for the 4.1 and green for the 3.7
 
TRopic6

TRopic6

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Hi Geo,

I remember green with a white splotch on the rear diff cover of my TR3A. It had factory OD with a 4.1 axle. I wish I had a picture, but it's stored in SC at the moment.

Jeff
 
bgbassplyr

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So, my TR4 had a red paint stripe ion the cover, no O.D. What ratio is indicated?
 
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Geo Hahn

Geo Hahn

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TRopic6 said:
... I remember green with a white splotch on the rear diff cover of my TR3A. It had factory OD with a 4.1 axle...
Click to expand...

After researching on several other sites -- 'green + white' seems to be the most popular answer. These days it seems okay to vote on which facts are true, so I'm going with that.

bgbassplyr said:
So, my TR4 had a red paint stripe ion the cover, no O.D. What ratio is indicated?
Click to expand...

My TR3 diff was painted (or possibly dipped) in Glyptal - which is reddish - then painted black on the exterior. So one possibility is that your red stripe is simply a place where the original black over-paint has worn off.
 
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SteveBones

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Same here....two splotches - one green and one white. The white splotch on my OD diff is actually an off white color. Not sure if you want to reproduce to match. If you do, I can send you a picture.

TRopic6 said:
Hi Geo,

I remember green with a white splotch on the rear diff cover of my TR3A. It had factory OD with a 4.1 axle. I wish I had a picture, but it's stored in SC at the moment.

Jeff
Click to expand...
 
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