Biggest tire on 1969 dart

-- Anybody get a 15 x 8 to fit
If so what back space --
-- This is a 15 X 8 with 275-60-15 tires. The springs were moved in with a off-set kit, 3/4", I believe. - The wheel wells were not modified. - I had the BS changed, on the Mopar Wheels, but don't remember what it was. - Car now gone.