Transmission Drain Plug

[T. Cotten]

A Helicoil is fine, Macca!

There should be a 62792-52 seal under the plug hex anyway.

No threads seal (unless they are NPT).

...Cotten
PS:

Try a time-cert. They seal better than a helicoil for anything that should not leak.

Also called keen-serts. They are like a screw in threaded bushing.

So,... There's two sets of threads to seal?

[RichO]

Also called keen-serts. They are like a screw in threaded bushing.

[otis71]

Try a time-cert. They seal better than a helicoil for anything that should not leak.

[macca]

Thanks for your reply Duke. So I guess mine is original but just stripped .Easy fix I will just Heli coil it.

[dukekleman]

The Original thread for the transmission case oil drain hole is 1/2-13
The part number for the drain plug is 707.
Hope this helps,
Duke

[macca]

Some body has done a doggy job on the drain plug on my 57 .Its 1/2 13tpi..I have another early case & its 3/8 unf.It looks original Can somebody tell me what the original size would have been.
Thanks
Mac
Aus