im currently running a raider M/T cheeter slick on my 62 dodge its a 8.20 15 and a coker tire silvertown front 7.10-15 im going to a 15-5 front rim and a 15-8 back rim with 4" ofset(4.5 old) which size would be better 255-60-15 or 275-60-15 im leaning on getting M/T and havnt checked the fronts but would like the same brand in front