Why is my C4 transmission leaking?

Question

1967 Mustang

289

Puddle below car (at least a quart maybe 2)

Dipstick says full

Also How do I replace the pan fluid and gasket?

Answer 1

It's probably the seal where the toque converter go into the transmission. When you start it it will fill the converter and then show low on the dip stick. It will pump it in from the pan when the engine is running.

Answer 2

  Could be several things. Pan gasket. Dipstick O Ring, Front pump seal. Selector shaft seal.

  To change the gasket, you need a BIG drain pan and just remove all the bolts holding the pan in place.