rear transmission seal help???????

[70chargerJohn]

can any one help me out? the rear seal in my transmission went out.. i have a 70 charger with a 318. im not sure what tranny it has i thought maybe a 727 but the seal was a tad bit to big....  if you know what it might be, and possibly have a part # for it i would gladly appreciate it.. thanks

[Ghoste]

If it's the original trans and engine, it's a 904.

[RD]

make sure you get the correct one.  take your old one in to check the diameters.  There are two types of rear seals for 904 transmissions, sometimes the auto parts company messes up and gives you the wrong one.  if you have your old one, you can be sure.