jrpimp00

iTrader: (17)

My new TH400 is leaking from the plug in the pic. I think an O-ring goes around it, anyone know the size? I would like to pick one up before I pull the old one. Been chasing what I thought was a pan leak, and 5 gaskets and 6 fluid drains later I finally see my problem.

john kilgore

any trans shop should have it, it is the same on the 2004r old plastic sometime shrinks so l wouldn't be afraid to use hi temp silicon also

jrpimp00

iTrader: (17)

Hopefully I got it fixed. The one on the right was the one leaking. The O-ring seems to be almost half the size as the one I pulled from another trans.

jrpimp00

iTrader: (17)

You can see better in this pic. But its rotated, so the one on the left is the leaky one

forcd ind

iTrader: (7)

Someone prob put the wrong o ring on it

unit

O ring on the left doesn't fit the recess very well. Looks like you should be good!