Alright, I've tried searching, and maybe I just haven't been searching properly, but I'm wondering what the bolt pattern is on my 1979 GS, the front brakes are from an 84 however, not sure if that changes the pattern or anything, sorry if there is a thread about this, just couldn't find it.

 

sould be 4 x 110 unless the front is off an SE then it would be 4 x 114 but! if you can fit your OG Rims on it. then its 4 x 110.