700R4/241C leaking from vent?

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ballencd

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Location
Columbus, NC
First Name
Charlie
Truck Year
1988/1991/1983/1984
Truck Model
V10 Suburban/V1500 Suburban/M35 bobbed w/dump/M1010
Engine Size
5.7/5.7/LDT 465-1c/6.2 diesel
Just replacing the front seal on the transfer case seems to have fixed it. I have no leaks now and my trans oil is staying stable. Time to move on to a radiator replacement! Baby steps.
 

bucket

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Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
It's a fairly common issue. My '88 Burb did it years ago too. It was not long after the trans had been rebuilt. I just took it back to the trans shop because I had no idea what was causing the mess under there. Turned out it was the t-case seal, so they resealed the whole thing for me.
 

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