Home First Gen Mustang 1965 Ford Mustang 1965 Ford Mustang Axle Information & Ratios The first table is the code and gear ratio. If you know your axle tag number, simply go to the second table. Axle code Ratio & type 6 2.80 open differential F 2.80 locking differential 2 2.83 open differential B 2.83 locking differential 1 3.00 open differential A 3.00 locking differential 3 3.20 open differential C 3.20 locking differential 4 3.25 open differential D 3.25 locking differential 5 3.50 open differential E 3.50 locking differential 8 3.89 open differential H 3.89 locking differential 9 4.11 open differential I 4.11 locking differential No Subscription? You’re missing out Get immediate ad-free access to all our premium content. Get Started Already a Member? Sign in to your account here.