Oldblue

Today I replaced the problematic leak in the passenger’s side output shaft seals.
As we know in the 4T40E and 4T45E which I have in my 2011 2.4 litre automatic, there is a cv axle, stub shaft with ring clips , a cup seal and an outer seal that seals the cup to the transmission case.
I see the cup seal leaking to the cv axle , it was leaking from the stub shaft , where there is no flexible seal, just friction between the cup and stub shaft. I installed that cup last May , 2022 and saw the dripping on the driveway a week or so ago.
Another member here had questioned if a Detroit Axle 986m-ax was the right part as it looked different, well if the stub shaft stays in the transmission, that’s because his axle just had the female splines . The Detroit axle part has the seal cup and the stub shaft machined into the axle resulting in eliminating that leak point into the cup and past the cv axle.




here is the stub shaft in the top photo, if that is scored or has damage from axle seal, you need a new one, note the price in CDN , plus shipping, about $40.00 to me in Canada
in the bottom photo see how that stub shaft goes through the cup seal
in the middle photo inside the cup is where the leak was


Here we see the stub and cup area are machined into the cv axle , eliminating 2 places to leak and that price is USD works out to $106.00 CDN and free shipping to me here in Canada. I bought mine from Amazon.ca , same price $106. Better then installing an expensive part that’s going to leak again, soon!

RJ_RS_SS_350

Smart design!

Oldblue

It’s a great idea, as you might remember I’ve changed cup and seal several times over the last 3 years.

Detroit Axle - Front Passenger Side CV Axle Shaft for Chevrolet Cobalt HHR Pontiac G5 Pursuit Saturn Ion - w/Automatic Trans ONLY - See Fitment https://a.co/d/2DcDOd1

The US Amazon post, it’s clearly only designed for the right side , automatic transmission CV axle. Now I’ve got a spare for the other side!

BSilvernale

Howdy,

In regard to the second picture posted at the top, showing the trans, is there a particular link or part number to that outer seal/ shaft seal?

I have been searching online and I am finding different shaped seals and drastically different prices.

Oldblue

This cup and seal? The National kit is good.

https://www.rockauto.com/en/catalog/...haft+seal,8636

BSilvernale

Yes.

And if you have the Detroit axle posted above, you only need the seal and not the cup that comes with that particular kit you linked?

Oldblue

You need the outer seal , not the inner cup.

https://globaltransmissionparts.com/...ter-axle-seal/

Oldblue

I now have this kit installed with the stub shaft and OEM axle, no leaks whatsoever

https://www.chevyhhr.net/forums/driv...g-again-66133/

BSilvernale

Thank you for the info.

I was looking at that thread other day and I would like to try replacing the seal before I drop $110 on that new kit.

Oldblue

Worth a try, I tried several brands over the past 5 years on the BlackSwan