just kind of curious because people everywhere keep swearing my car is a GL-10 and i end up having to show them my title and VIN to prove otherwise lol, but does anyone know if theres a difference between an '87 GL Turbo and an '87 GL-10 Turbo??

GL-10 is an option package.

 

GL-10 = sunroof, digi-dash, trip computer, push seats and height adjustable seats.

 

GLs had regular dash, no sunroof, and regular seats but could be had w/ turbo in and either 5 spd 4wd or 4EAT

Mechanically. they are the same.EA82T  from 88 and later the same.