R00T3D

I really Did not want to have to post this but I guess its worth a try. I recently got some new wheels/tires and Before I even get them up to the shop where im gonna do the work I wanna make sure they will fit right. The wheel locks on the wheels ATM are in rough shape So I dont wanna risk taking them off to test fit and them not going back on. Buddy I bought them off said they Fit perfectly on his GS but to put them on the LS I might need to get spacers for the front, Can help me out? Much appreciated

XXR 521
Front 20x8.5 +30 Tires 225/35R20
Rear 20x10.5 +32 Tires 255/35R20