will this tach work for my 87 gn

[mikes gn]

it's an auto meter # 3780 , will i need to buy any thing else or is it just a quick and easy install.....
thanks mike

 

[williamsGN]

Should work fine, shouldn't need anything else
http://turbobuick.com/forums/threads/autometer-tach-install.387148/#post-3119088