With over forty years experience we are one of the leading companies in classic car maintenance, specializing in automatic and Pre-select gearboxes. At G.W.A we don't only remove, repair and refit all gearboxes, but we are a top manufacturer and supplier of parts used, so we know every part we fit is of the highest quality. Our open door policy allows us to welcome customers into our workshop to view the process undertaken with their vehicle or transmission.