I just bought a new truck, a 95 F-150 4x4. The door tag code says for the axle code 17.

I looked at the metal tag on the diff itself and cannot recognize any thing that looks like an axle ratio number.

Can anyone help me out with identification?

Thanks,

 

It's a 3.31 open diff.

 

90f150moneypit

Thanks for the reply.

I guess I did see that number but did not recognize it as being a Ford ratio. I was used to the 3.08, 3.54, 4.10's that were the ratio's in the older 4x4's.

Is there a site where I can access the the code numbers for the newer trucks?

I realize its not very new but its new to me.

 

Yeah, right here on FTE in the Tech Articles.

 

This PDF from Ford shows the '97 codes, but they span several year before & after.

 

Thanks, I will check it out.