any cars use same idler pulley as 87 gn??

[87gninpa]

would any other 80's gm cars use this same part??

 

[Red Regal T]

If you mean the pulley on the tensioner, 86 and 87 front drives with 3.8

 

[Race Jace]

why? do you need one? I have some billet aluminum ones or i can send you a stocker with a good bearing in it for the cost of the shipping if you need it.