Am new to this game and am curious as to find out what my rear axle ratio is in order to tow. I purchased my 2000 F150 SC 4x4 used with a Tork Lift hitch receiver already installed. Any help would be appreciated.
Thanks

 

On the driver's side door jam:



The front and rear axle codes are as follows:
Rear axle ratio codes (A) are:

18 - 3.08.
19 - 3.55.
26 - 3.73.
27 - 3.31.
H9 - 3.55 Limited Slip.
B6 - 3.73 Limited Slip.

Front axle (B) code.

 

Thanks for the info. Now I can use the chart that Raoul has posted.