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Front seal replacement T56

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Old 01-05-2012, 10:01 AM
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Default Front seal replacement T56

When I pulled my T56 to replace my slave cylinder I noticed the slightest drop of fluid coming from the front seal so while its out I'm going to replace it. My question is how do I get this thing out? Just take those bolts in the slave area out and pull the front part of the case off? Is there anything hard about it? I've read a description of doing a Vette tranny but I wanted to make sure they were the same. How do I need to go about replacing it? And will the Timken seal be good enough?
Old 01-05-2012, 10:53 AM
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Your on the right path. Pull the tranny and unbolt the case front. Pull the case and its intuitive from there on. Becareful with that loose blocker ring during reassembly.
Old 06-26-2012, 03:15 PM
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I did a ton of searching and could not find any pictures of the process, so I though I would post some.

Remove the dozen or so 15mm bolts



Split the case apart being careful not to pull the output shaft off. I put a jack stand against it to hold it on place:



Pull the bearing races out:



Tap the old seal out (front to back):



Now go wash the bell housing. Then tap the new seal in using an equal sized socket (back to front)



Clean the sealing surface and then put some RVT gasket maker on there.



Then bolt it back together using the time protocol in the RVT directions. Bolt torque should be 37 ft/lbs. Make sure you line everything up and ease it together.
Old 06-26-2012, 05:10 PM
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Originally Posted by UofA_ZCar

Clean the sealing surface and then put some RVT gasket maker on there.



Then bolt it back together using the time protocol in the RVT directions. Bolt torque should be 37 ft/lbs. Make sure you line everything up and ease it together.
I guarantee if you use that much RTV that you'll be pulling and rebuilding in 3-6mos after it works out and into all the synchros and blockers... A finger wipe is all that's needed...

Bolt TQ is only 26#
Old 06-27-2012, 07:46 AM
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Also, a dollup of assembly grease on the bearing cups will hold them and the shim packs in place (& not drop inside the case) when you re-install the front adapter( cover).
Old 06-27-2012, 06:46 PM
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Originally Posted by 85MikeTPI
I guarantee if you use that much RTV that you'll be pulling and rebuilding in 3-6mos after it works out and into all the synchros and blockers... A finger wipe is all that's needed...

Bolt TQ is only 26#

When I torqued the bolts down there was hardly any squeezing out the sides. Hopefully these pictures and comments help someone in the future. Had I had a picture reference I would have used less RVT.

Thanks for the additional info!
Old 03-20-2019, 08:17 PM
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Great images, thank you!!



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