4l80e sun gear/shaft orientation help please

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Aug 13, 2015 | 11:46 AM

tgui

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4l80e sun gear/shaft orientation help please

How should the oiling holes of the shaft be oriented in relation to the grooves and oiling holes of the sun gear?

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Aug 13, 2015 | 07:20 PM

DrX

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see attached. Looks like a 91-96 shaft.

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4l80e sun gear/shaft orientation help please-80e-sungear1.jpg

4l80e sun gear/shaft orientation help please-80e-sungear2.jpg

Last edited by DrX; Aug 13, 2015 at 07:25 PM.

Aug 14, 2015 | 07:41 AM

tgui

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Quote:

Originally Posted by DrX

see attached. Looks like a 91-96 shaft.

Yes indeedy! I have an old one

Do the oil holes in the shaft need to line up with the grooves inside the sun gear?

Aug 14, 2015 | 08:30 AM

tgui

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Found it! Lube hole in shaft lines up with lube hole on sun gear.

Aug 14, 2015 | 09:05 AM

DrX

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I'm not an expert but I don't see it making a difference as the oil is going to fill and pressurize the entire circumferential groove.

Aug 14, 2015 | 09:11 AM

tgui

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Quote:

Originally Posted by DrX

I'm not an expert but I don't see it making a difference as the oil is going to fill and pressurize the entire circumferential groove.

Yeah, thats a good point. My ATSG manual makes no points on orientation either. I think I watched this video long ago and it stuck in my mind to watch orientation on my build.