A good used Jaguar 4HA crown wheel and pinion ratio 3.77:1 Jaguar part number 6306 4HA-105/7A

Good used condition as you can see from the pictures.

 One of the pinion teeth has a chip on it (see pictures) but this is out of the contact area so wont affect it's function.

The CW&P will more than likely fit other 4HA axles but obviously check compatibly before committing to purchase

Good ratio for track days & rallying etc.