Tranny fluid type

[1978 Homebuilt Fords]

Fill plug is usually mid-way on the transmission, and the transmission is filled about half full. The gears in the bottom transfer the oil to the top of the tranny as they are turning.

Ok perfect. I'm not blind then

 

[Shran]

If the oil was up past the fill plug then someone overfilled it through the shifter hole. Fill it till it just starts to dribble out of the top hole... that's where it should be.

 

[1978 Homebuilt Fords]

If the oil was up past the fill plug then someone overfilled it through the shifter hole. Fill it till it just starts to dribble out of the top hole... that's where it should be.

That's what I thought. I didn't think it was supposed to be so full...

 

[19Walt93]

Fill plug is usually mid-way on the transmission, and the transmission is filled about half full. The gears in the bottom transfer the oil to the top of the tranny as they are turning.

That usually indicates the rear seal is leaking on the transmission, was the transmission fluid low?

 

[1978 Homebuilt Fords]

That usually indicates the rear seal is leaking on the transmission, was the transmission fluid low?

No, it was way overfilled

 

[19Walt93]

No, it was way overfilled

If the rear trans seal leaks it overfills the transfer case and the transmission level drops. So you're saying both the transmission and transfer case were overfull? If that's the case, when you pulled the drain plugs did water come out first? If it's been in deep water it would get in the vents and the fluids would both float on the water. That wouldn't be good.

 

[1978 Homebuilt Fords]

If the rear trans seal leaks it overfills the transfer case and the transmission level drops. So you're saying both the transmission and transfer case were overfull? If that's the case, when you pulled the drain plugs did water come out first? If it's been in deep water it would get in the vents and the fluids would both float on the water. That wouldn't be good.

My truck was a mudding truck for a long time, and it has been buried up to the cab roof in water and mud but no water got in my transfer case or transmission. Which I was very happy to see.