1973 Mustang – Axle Information

1973 Ford Mustang Axle Information & Ratios

Ratio Locking 1969 1970 1971 1972 1973
2.35 F
2.75 2 2 2 2 2
2.75 Locking K K K K K
2.79 3 3 3 3 3
2.80 4 4 4
2.80 Locking M M M
2.83 5 5
3.00 6 6 6 6 6
3.00 Locking O O
3.07 B B
3.08 C C
3.08 Locking U
3.10 7
3.20 8
3.25 9 9 9
3.25 Locking R R R
3.50 A A 9 A 9
3.50 Locking S S R S R
3.89 A
3.89 Locking S
3.91 Locking V V V
4.11 Locking V
4.30 Locking W W Y

 

Axle code Ratio and type
2 2.75 Open differential
K 2.75 locking differential
3 2.79 Open differential
6 3.00 Open differential
O 3.00 locking differential
9 3.50 Open differential
R 3.50 locking differential
A 3.89 Open differential
S 3.89 locking differential
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