Bought a rebuilt 3.03

StarDiero75

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Howdy guys,

I finally bought a rebuilt 3.03 today, never used. It came out of a 72 mustang with a 351. It looks exactly like the one i took out of the car. Im not sure if i have to break it in or how to do so though. He got it rebuilt 7 years ago, but then decided to put in a 4 speed, so its never been used like i said earlier.

So how do i break it in? And what kind of gear fluid should i use? I use 90w in the rear and previously in the old 3.03, is that the one i should be using?

Thanks guys!
Ryan
 
I'd use 75W 90 gear oil, preferably synthetic.

No break in period needed for transmission.
Install and enjoy.
 
rocklord":299y9khn said:
I'd use 75W 90 gear oil, preferably synthetic.

No break in period needed for transmission.
Install and enjoy.
That and drive it like you stole it. (y)
 
rocklord":1olje236 said:
I'd use 75W 90 gear oil, preferably synthetic.

No break in period needed for transmission.
Install and enjoy.
Ok cool man!! Thanks a lot! Yeah i use Lucas racing synthetic. Only the nice stuff.

Thanks!
Ryan
 
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