Lil ID help for a rookie

[Saetun]

I"ve got a '73 swinger w/ a 318 I'm still familiarizing myself with. I'm hoping to get a little info from those out there who know. I pulled the old brittle build sheet from under the rear seat & I'm having a tough time breaking the codes. trying to ID what tranny, diff & gears I have.

build sheet codes:

Trans: 063
Axle: 973

Just from reading I'm guessing I'ts a 904 tranny with an 8.25" rear and couldn't know less about the stock gears.

thx for the help.

 

[340plot]

063 is: pull out trans and put 4 speed in

973: is: pull out junk rear and put 8.75 in it with sure grip.

lol, just messin with you. i have no clue

 

[Saetun]

Maybe someone knows what stock gears were on 73 dart swinger 318?

 

[daliant]

probably 2.73 or 3.21

 

[mopardrt]

not sure on gears but yes its deff a 904 and a 8 1/4 rear