Is the Jag differential strong enough?
You bet! The Jaguar piece is a Salisbury made unit that uses Dana 44 gears. It was used (with a slightly different casting) in the original 427. The few problems some people have encountered resulted from drag strip events while using high-traction slicks. And that particular weakness can be cured with available high-strength stub axle shafts available from Concours West. Remember! You can only exert so much traction in a car that weighs 2600 lbs., even with over 50% of the weight on the rear axle. We’ve looked at the much vaunted Ford 9″. I doesn’t offer any advantages – and it costs more.
