transmission mount - H6 2003 - Subaru Outback - Subaru Outback Forums
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post #1 of 47 (permalink) Old 04-16-2019, 03:55 PM Thread Starter
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transmission mount - H6 2003

So I've installed a new tranny mount - the old one was indeed broken. While banging various hardware with a rubber mallet under the car the other day I notice how much play there was in the new mount.

I am wondering if I did not tighten the center bolt enough, I have posted photos of a screen grab of Mr Subaru via youtube and a photo my mount. Looks like the rubber washer on my mount is not flush with the surface of the mount.

I think I tightened it as much as I could ???? Could this be the source of my idle vibration - Did I get the wrong mount - it was OEM from subie and correct for year and model.

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post #2 of 47 (permalink) Old 04-16-2019, 04:01 PM Thread Starter
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Ok just looked at https://www.oempartsinc.com/oem-part...g2LWdhcw%3D%3D

WTH is Trans Cross-Member Stopper - Subaru (41022AE19A)!!!

Looks like I have it but why the big gap!! One would think it should be flush with the cross member ?

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post #3 of 47 (permalink) Old 04-16-2019, 05:32 PM
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Ok just looked at https://www.oempartsinc.com/oem-part...g2LWdhcw%3D%3D

WTH is Trans Cross-Member Stopper - Subaru (41022AE19A)!!!

Looks like I have it but why the big gap!! One would think it should be flush with the cross member ?
Looks similar to mine. I had the same question some time ago: https://www.subaruoutback.org/forums...2007-4eat.html
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post #4 of 47 (permalink) Old 04-17-2019, 12:22 AM Thread Starter
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Yes I just realized that it seemed to be normal. I still have quite a bit of movement if I put a pry bar on cross member so perhaps I have worn engine mounts too. Just that dam vibration at idle - some guy sells an insert where this bolt goes to supposedly reduce the vibration but its hard to believe that Subaru would design the engine to vibrate like this.
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post #5 of 47 (permalink) Old 04-17-2019, 10:41 AM
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hard to believe that Subaru would design the engine to vibrate like this.
your hunch is correct, they don't do that off the showroom floor.

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post #6 of 47 (permalink) Old 04-18-2019, 04:15 PM
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Did you install a good trans mount? The center bushing should bottom out on the transmission cradle. If not, then the bolt is too long or the mount is too narrow when compared with a correct sized mount.


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post #7 of 47 (permalink) Old 04-18-2019, 04:56 PM
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Do you mean that castle-nut looking washer should be up against the crossmember?

I thought there should be a gap. That's the way it is on mine, and I thought it was confirmed in this post. Did I misunderstand, or perhaps the 2003 H6 is different.

(Of course, the gap in the OP's case, might be too large . . .)
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post #8 of 47 (permalink) Old 04-19-2019, 04:45 PM
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Subaru used the same transmission mount for the 4EAT and 5EAT transmissions. Every one I've put in, that rubber/metal bushing rest against the cradle when the center nut is tightened. When there's a gap, that's when you know the mount is weak because the compressed rubber allows for the center bolt to drop further through the cradle.


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post #9 of 47 (permalink) Old 04-19-2019, 05:16 PM
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Subaru used the same transmission mount for the 4EAT and 5EAT transmissions. Every one I've put in, that rubber/metal bushing rest against the cradle when the center nut is tightened. When there's a gap, that's when you know the mount is weak because the compressed rubber allows for the center bolt to drop further through the cradle.
Do you mean the bushing should be resting up (snug against) the rear crossmember in the attached diagram? Wouldn't that restrict, if not totally prevent, movement of the transmission tail section?

I don't recall seeing any of those bushings up against the crossmember, but I'll have to look more closely now.
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post #10 of 47 (permalink) Old 04-19-2019, 05:17 PM
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Subaru used the same transmission mount for the 4EAT and 5EAT transmissions. Every one I've put in, that rubber/metal bushing rest against the cradle when the center nut is tightened. When there's a gap, that's when you know the mount is weak because the compressed rubber allows for the center bolt to drop further through the cradle.
I have to disagree. Only because I now make transmission inserts for every automatic transmission (and some manuals) for every Subaru produced world wide since 1992. There are 5 differnt void shapes for all ATs (including all CVT) and 1 that is specific to the 6MT diesel.

The design of the mount is the same. The cushions and the size of the void are different. The 4EAT void is wider that the 5EAT.

The center bolt is a safety bolt to limit the movement. It acts as a stop.


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