The GB9 is a robust gearbox with 35mm ground shafts. The gears and shafts are fitted with involute splines and it is capable of 75hp at 540rpm. The standard box comes with a through shaft and is also available with two shaft extensions for left or right-hand drive.

Recommended Oil
Mobilube HD Plus
80W-90 – 1.5 LITRE

Download PDF: GB9