will the 15 inch rim from a 89 fit on a 2002 with 16 inch

 

NO!!!!
A 16in rim or bigger with a 5x135 bolt pattern will only work with our trucks

 

You can fit a 15" rim with some minor grinding of the front calipers, people have done it but I say not worth the time... Also you would need wheel adaptors, our trucks are the only vehicle with the 5x135 bolt pattern, again I would say not worth it

 

Agree a7x not worth the trouble

 

If you gotta grind down your BRAKES to fit SMALLER rims than stock onto your truck i say its definantly not worth it, why do you want to go to 15's anyway??