I have a set of fox 36 factory fit 29er 2018 forks that are currently 160 travel . What is the max travel the body can go too ? I'm wanting to fit the grip2 damper side into them and increase the travel too 180 but read the 27+/29er forks can only go to 170, can any confirm this and is it just a simple case of buy the damper and airshaft and swap them out , from what I can see there's only 1 grip2 damper and it does all travel up to 180 .