The T4 swivel base is the best option for a new complete base which includes both a single base (ideal if removing a double seat) and an integrated swivel plate. The added bonus being that we have had the base machined lower so that the overall height of the base including swivel is the same as a standard factory T4 base. This means your passenger seat will stay the same height as the drivers seat even with the swivel built in. Using the same tested mechanism as the T5 base it spins 360 degrees in either direction so can be fitted on either side.
T4 swivel base
