Tire size?

Aloha guys! Thinking about switching my 35 x 12.50r15lt tires to 33 x 13.50 x 15. What can I expect with this switch? Is it possible and will it be less stressful on the engine and axle? Mahalo for the advice aloha!

Is it a situation where everything set up and has been geared and used to 35's? I'm sure the stock set up is for something like 28 inch tires or smaller. Sorry just picked her up, first car with tires over 31"