Fmx Leaky Tranny Question

1. 
   Hi all! I have a 1970 Mach 1 with a 351W and a FMX Trans. I have owned this car for about 30 years and drive it fairly often in the summer months. My problem is there has been a slow leak coming from the front of the bellhousing when I park the car. It drips a few after parking then stops. I have some skills in wrenching but less in diagnosing. Could this leak be from the convertor? I know theres fluid in the converter and if it is leaking are there seals that need to be replaced or do you just buy a new converter? What else could it be? Im sure theres a front seal for the transmission shaft that could be leaking? I think it could be the converter because after sitting for a while it takes the car to go in gear after putting it in gear especially reverse. Any help is appreciated as I plan on dropping the transmission soon to fix this leak that has been there for quite some time.
   

dennis112 said:

First make sure it is transmission fluid that you are dealing with. The rear main seal of the engine can leak into the bellhousing too.

The converter is probably fine as they are a sealed metal unit. There really isn't anything you can replace on it anyways. It could be the front shaft seal that you mentioned (quite likely) or possibly the front pump outer seal. After 30 years the front shaft seal is probably dried up and should be replaced. The pump outer seal is more involved but, unlike the front seal which has the rotating converter to seal with, the pump seal is a stationary devise so I wouldn't go there yet without first trying the shaft seal.

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