904/998/999 ID'ing?

Working w/ a 79 volare...

How can I tell which one I have? It's not a lock-up trans, that much I know...

does it matter?

Trans needs to be rebuilt, need to know so I make sure I get the correct parts.

tia,
chris

I'm wondering how to tell the diff also. might post the # stamped on the pan rail so someone can ID it

yep,#s on the pan rail will tell the story on it

then when its opend up,you will know if its been worked already also

904 = /6
998 = 318
999 = 360

At least in that era. All flavors for the same trans though.

Where exactly are the numbers usually located? There's a lot of grime on this trans, so I'm sure they'll pop up once we clean it a bit, but it's not too obvious where they are now...

thanks for the info...I'll post up the numbers when we find them

Go by what the number says. It's stamped on a flat surface right over the pan.

Okay...the numbers that were found were as grouped:

4180972 6394 5478

can anyone decipher these?

Looking here:
http://www.mymopar.com/downloads/transguide.pdf
I'd say your number is 4130972, which is late 79 904 from a 318.

Found that link in another trans ID thread here:
https://board.moparts.org/ubbthreads/show...rue#Post6466924

As far as ID to get the right parts -
It depends on how much you'll be replacing. Look at the listing for various parts kits, the application dates will tell you how far they cover, and the exact year/model might not matter (like on a seal/gasket kit). But if you're putting clutches in, you'd need to know if it was a 5-disc police unit or not.

6394 is the build date February 1, 1979.