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gmebey · 09-08-2014, 04:14 PM

First of all thank you for all the advice.

I had some time yesterday and started looking around for a possible leak source above the pan…..and guess what. I think there are one or maybe two; first being the governor cover and the other being the gasket between the main housing and tail housing.

Both of these really bother me since I had the transmission rebuilt about 3 months ago! I’m in contact with the rebuilder to see what my options are. After a few conversations with the rebuilder I suspensions that his torque wrench(s) are a bit out of calibration, if used at all.

So at this time my patience over the constant leaking has worn a bit thin……haven’t decided if I’m going to fix the one (or two) leakers on myself and hope for the best when it comes to the internals of the transmission.

With that can anyone point me to a GM document of the torque specs for the whole transmission?

09-08-2014, 04:14 PM	#21
gmebey Registered User Join Date: May 2011 Location: Fort Collins, Colorado Posts: 95	Re: TH400 pan still leaking! First of all thank you for all the advice. I had some time yesterday and started looking around for a possible leak source above the pan…..and guess what. I think there are one or maybe two; first being the governor cover and the other being the gasket between the main housing and tail housing. Both of these really bother me since I had the transmission rebuilt about 3 months ago! I’m in contact with the rebuilder to see what my options are. After a few conversations with the rebuilder I suspensions that his torque wrench(s) are a bit out of calibration, if used at all. So at this time my patience over the constant leaking has worn a bit thin……haven’t decided if I’m going to fix the one (or two) leakers on myself and hope for the best when it comes to the internals of the transmission. With that can anyone point me to a GM document of the torque specs for the whole transmission?