PSK 3070 - Gearbox Tunnel, Type 2 Land-Rover Series 2 and 2a £41.70 Quantity: at £41.70 each Add To Basket 1 in stock. Gearbox Tunnel, Type 2 Later type of Gearbox Tunnel with the access hole to bleed the Clutch Slave Cylinder. Fitted to: Series 2/2a, 4-cylinder, Type 2 to Type 8. Series 3, 4-cylinder, Type 1. The access hole is a redundant feature on early Series 3 bulkheads.