On a 03' F-150 what does axle code 27 on the inside of the door mean?

1997 - 2004 Ford F-150/250 L - Limited Slip Differential
C - Conventional Differential
Code \ Ratio
18 \ 3.08C
19 \ 3.55C
24 \ 3.54L
25 \ 4.10C
26 \ 3.73C
27 \ 3.31C
28 \ 3.73C
B5 \ 4.10L
B6 \ 3.73L
H9 \ 3.55L Good Luck and Remember.
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