Is there a rectangular seal under the 727 trans?

[themechanic]

I replaced the rear trans mount in Uncle Bill's Cuda this week. It looks like there is a rectangular seal under a metal plate held on with two Phillips screws. I wiped it off and it was wet the next day. Mind you, I had already drained the trans to replace the speedometer cable housing seals and install a new dipstick.

Is there a seal under the trans mount? I need to know ASAP before I fill the trans.

Thanks

 

[pnora]

I replaced the rear trans mount in Uncle Bill's Cuda this week. It looks like there is a rectangular seal under a metal plate held on with two Phillips screws. I wiped it off and it was wet the next day. Mind you, I had already drained the trans to replace the speedometer cable housing seals and install a new dipstick.

Is there a seal under the trans mount? I need to know ASAP before I fill the trans.

Thanks

Yes a rectangular cork gasket.

 

[themechanic]

Yes a rectangular cork gasket.

Is it the snap ring access cover gasket like Fran mentions in post #81 here? If so, where can I find one?

Your 'Guide' to the 727/904 transmission

There is a gasket where access rear bearing snap ring. Small plate held on by 2 counter sunk phillips screws. It's a paper gasket, you can make one.

www.forbbodiesonly.com

 

[themechanic]

I found a tail housing seal kit that includes the gasket I need at a couple online stores. I may try and make one, as Fran suggested and save $65.

 

[Lefty71]

I may try and make one, as Fran suggested and save $65.

Some kits include that in a paper type gasket material..... I would certainly try and make one up before I spent money too. Good Luck.

 

[themechanic]

Does the transmission fluid need to be drained to replace the gasket and/or output shaft seal? I'm thinking lifting the rear high enough should prevent any leaks without draining the trans fluid.

 

[Lefty71]

Good chance you'll be ok... just be prepared lol.

 

[themechanic]

Good chance you'll be ok... just be prepared lol.

Ha! I'm usually not lucky enough to forge ahead and hope it goes right. So, I really would like to know for certain before hand.

 

[RemCharger]

Not much will come out. The speedo gear is right by it, and lower.

 

[themechanic]

I just ordered the output shaft seal and a Fel Pro gasket material kit that includes cork and paper materials of different thicknesses. So, I will wait and do the job and then add the trans fluid.

Thanks for all the help, fellas.