Neither. There are reasons why spacers are outlawed in several states. Your profile indicates that you are from New Jersey...I believe they are prohibited in your state. Get rims with proper backspacing.
Current: 1982 CJ-8 Scrambler SR -Same one I sold in 1996 2013 JKUR softtop - Traded 10/2015
Gone and fondly remembered: '03 Rubicon - Sold 10/31/12 '82 Scrambler purchased new in 1982 - sold in '96