Replace transmission fill tube or fill tube O ring

[JJHstang]

leaking automatic transmission fluid not sure where it is coming from. Not sure what transmission I have. Car came with a 302 2bbl and I believe still original transmission.
I was told it might be the O ring where the transmission fill tube tits into the transmission.
Trying to find DIY video on how to replace the O ring or the whole fill tube with new O ring.
I have attached a picture that shows the fluid drips in one spot and pools into another place. I just happened to look at my drip pan Monday 09/17.

 

[89ripper]

Year and model of car? Little more details are needed, perhaps a pic of the transmission pan....

 

[JJHstang]

Year and model of car? Little more details are needed, perhaps a pic of the transmission pan....

1971 Ford Mustang Mach1. Came with a 302 2bbl. I have a 351w 4bbl now. I believe the transmission is the original 3 speed 4C. Will try to get pic of transmission.

 

[JJHstang]

Here is just a picture of my car.

 

[89ripper]

Drivetrain Thread 'C4 transmission leak question'

Aug 29, 2021

Hello all!

I don't have a classic mustang but I do have an old school classic mustang transmission in my Foxbody and I am hoping to get some help with a leaking pan.

My 1990 GT has a C4 transmission from a 1973 Mavrick with a 302. It was rebuilt a few years ago to go with my new engine. I got the engine and transmission in the car this summer and have been driving and enjoying the upgraded ride.

However the C4 has developed a leak from the pan. (or what I think is the pan) and I am having trouble tracking it down and figuring out how to get it to stop.

First I pulled the pan, check it...

• Justin87
• Replies: 9
• Forum: Classic Mustang Specific Tech

Read over this and report back if you have any troubles