According to the TR6 workshop manual, there is a plug on the side of the vertical link that you remove and fit a grease zerk, then fill with 90 weight GL4 Gear oil through the grease zerk, every 6000 miles. It explicitly warns against using grease (but doesn't give a reason why).Hi I need some help in lubing or greasing of the trunnions I purchased them about 10yrs ago new an there are no grease fittings. When I installed them I packed them with grease. The more I read I see they need to be greased more often. thanks