leaking from slip yoke/ transmission seal

impropernick

Member
Jan 4, 2021
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New Hampshire
Hey everyone, I've noticed that when I jack up my car, at least from the front, that I will end up getting some weeping/leaking coming from where the slip yoke meets the transmission seal even after I put it back down on the ground. It seems to stop eventually, but it's going on for nearly a day this time. I'm not sure if the slip yoke is sticking out too far or anything either, but it's a summit aluminum driveshaft P/N SUM-790303 (came with the yoke attached) and a tko 600 in an 82 mustang with a 351w swap. I'm wondering if I need a new seal, but then again I'm wondering if the yoke should be slid in further, which i'm not sure if that's even possible.

 

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96pushrod

I think they're a little easier to get off
May 15, 2018
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Savannah
Does the car have weight on the wheels in the picture?

I’ve encountered a little fluid weeping past the rear seal before, but as long as it’s not dripping on the ground I wouldn’t worry about it.
 
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96pushrod

I think they're a little easier to get off
May 15, 2018
1,359
856
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Savannah
Looks like the stick out is a little over an inch? Might be out a little more than you need, but I wouldn’t worry too much.

I’ve seen the drain and fill plugs on transmissions leak when people don’t put some sort of sealant on them as well.
 
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