buying new wheels/tires

[MC-84]

my tires are finshed so im planing on buy new tires and wheels. for the tires i was thinking of going with M&H Drag Radial Tires (15x6 in the front 185-Series Tire Width) and (15x8 rear 275-Series Tire Width) would i be ok with that setup. i have a 7.5" stock rear end setup. what bolt circle and back spacing would be good?

 

[MonteMike79]

3.5" back space 5 x 4.75 bolt circle is what you need in the rear.

 

[MC-84]

but would i have any problem with the 275-Series

 

[Jackstand]

shouldnt.... 4" backspacing is beter but most wheel companys only have 3.5 or 4.5