repowering

[tailgrabber]

I am going to be repowering my boat from an old Merc. to a newer Yahama. I am pretty mechanical my problem is not knowing the names of the parts I have to get. So rather than sounding like an idiot at the parts desk I am asking for some assistance here first. I am looking for parts online but I'm not sure if looking for control arms is the right term. I heard they were about 500.00 what I have found was 39.00 so I don't think I am calling the part by the right name. Help please!
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[tomc]

i am not sure if i am on the same page as you.but are you looking for the controls to run and steer,like what is pictured
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[tailgrabber]

Do you know if I have to change the steering cables or not.
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[tomc]

no,just the control box and throttle and shift cables
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