I have 295/50/15 tires on my 70 Charger,the rims are 15x10,with a 5 inch backspaceing. 68-70 Chargers have the biggest wheel wells of all the b bodies.

70 Charger R/T SE 472 Hemi 70 Charger R/T convertible 70 Charger R/T V Code Sixpack 69 Charger R/T SE Sunroofcar 68 Charger 383 68 Charger 318 71 Charger R/T 70 Challenger convertible 71 Challenger convertible 71 Cuda 340 09 Challenger R/T Classic