Why The Ford 9 Inch Is Great And Why You May Not Want To Use One In Your Car. Pinion Height Matters

Uncle Tony's Garage

The legendary 9 Inch was never intended to be a performance rear, but nearly 70 years after it's introduction it's considered the ultimate universal hot rod axle. Here's an explanation of its history, the reasons it is so strong and adaptable and why its unique pinion placement may make it a poor