Replace Working Evaporator Fan Motor?

With help and parts from this great site I fixed the blown condenser fan motor and mother board in my 5 and 1/2 year old GE Profile frig.

Can advise me if I should replace a working evaporator fan motor at this time. Will the board again blow if this motor fails? Is there a high enough fail rate to warrant replacement now…or should I just let things be?

Thanks, Ken