mr mufakka
+1y
Tucking wide wheels... mmmm. Nothing better.
A few numbers, though it may confuse you. My 20x10s have a 35mm backspacing I believe. They tuck awesome. HOWEVER. I'm running an Explorer rear end which has been narrowed. It's 1/4" shorter on both sides than the Ranger 8.8" rear end.
If I'm not mistaken, take the 35mm offset and add 1/4" more and you should have your number. BTW, 1" = 25.4mm