changing prop on tru trac

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Do i have too remove rudder to change prop ? it doesn't seem like there is enough room ?

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well tryed it and if you turn the rudder one way it won't come off but if you turn the other it has enought room .... I changed the 3 blade too A 13x13 4 blade ss and will be taking it out tomorrow too test as i over reved the motor and had a valve touch the piston i decided to upgrade the cam and install gt40 heads for some more kick should be a whole new boat