1986 700R4 leaking

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BJedi76

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Nov 7, 2019
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Location
Soldotna, Alaska
First Name
B.J.
Truck Year
1986
Truck Model
GMC Sierra Classic 1500 4x4 SWB
Engine Size
305”
The pan was leaking, so i replaced the pan gasket, but apparently it had more than one leak.

It is now leaking a lot less, but it is definitely leaking out of the torque converter cover.

What are the possible leak pionts at/near the torque converter

…& can such a leak/seal be replaced without removing the transmission?
 

PrairieDrifter

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Location
North Dakota
First Name
Mason
Truck Year
84,79,77,70,48
Truck Model
Suburban k10, bonanza k10, c30 C&C, c10, gmc 1/2ton
Engine Size
350, 350, 350, 350, 350
There is the torque converter seal, it's like pretty much every other shaft seal. Then also the pump seal which is that whole front cover, on a 700r4 the lockup solenoid must be removed to remove the pump, ask me how i know, lolol.

If you have a leak from inside the bellhousing, the trans will have to be pulled to do either of the seals I mentioned.
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