baha
+1y
You don't need any higher then 35 lol, If you decide to go with autoloc make sure you mount them horizontally, if they get water in them they will seize up after awhile, only took 2 months for mine to seize. Spal makes the ones with the rubber boots you should get those.
they also sell the emergency back up pull cable, its alot better kit then auto loc, I had to use mine a few times