Which trim gauge is the one to use?

[Yamahaha]

I have a new F150 and need a trim gauge> Choice #1 is 6Y7-83670-10-00 for $84, and choice #2 is 6Y5-83670-12-00 for $147. Both appear to be the same except for color of faceplate. What's the difference between the two?

 

[rodbolt]

Re: Which trim gauge is the one to use?

look at the wires. one will be a two wire unit the other a three wire unit. they wont interchage. if you had bought a yam digital tach you would have visual alarm indicators, trim gauge and an hour meter in one gauge.