To find the offset of a wheel you will need to measure the wheel for overall width and measure its front space (see Backspacing above). Offset is the distance +/- from wheel centerline, indicated in millimeters. Items required to measure wheel backspace:Ģ) Straightedge that will fit within the inboard flange of the wheel Subtract backspace from overall wheel width to get front space measurement. The diagram above shows a 2″, 3″ and 4″ backspace.įrontspacing is the direct opposite of backspace. (# of Lugs) X (Measurement Between Specified Lugs)Įxample: (5 Lugs) X (4.5″ Between Lugs 1 And 3) = 5×4.5 Lug Patternīackspacing is the distance from the axle pad (the part that contacts the wheel hub) to the inner edge plane (inboard flange).ĭeeper backspacing moves the wheel and tire inboard on the vehicle shallower moves them outboard.
1972 nova stock wheel offset how to#
The diagram below will show you how to measure wheel bolt patterns.Ĥ-Lug – Measure from the center of the first lug to the center of the third lug in the pattern (opposite Holes).ĥ-Lug – Measure from the back of the first lug to the center of the third lug in the pattern.Ħ-Lug – Measure from the center of the first lug to the center of the fourth lug in the pattern (opposite Holes).Ĩ-Lug – Measure from the center of the first lug to the center of the fifth lug in the pattern (opposite Holes). The Ford Ranger and Bronco II have a 5×4.5 wheel bolt pattern. The bead seat is the part of the wheel where the bead of the tire sits once the tire is inflated. To determine the width of the rim, measure from bead seat to bead seat across the wheel, not from lip to lip. It is not measured from the outside rim to outside rim.Ī common mistake when measuring a rim’s width is measuring the absolute width of the wheel. The wheel diameter is measured by measuring from the bead seat on one side of the rim to the opposite side bead seat. When discussing wheel measurements, you need to know what each description is referring to. You would have to have the hub center cut out by a machine shop to fit over the hub. The center hole is too small for the locking hub to pass through. Wheels on a 1998+ 4×4 Ranger will not fit the front of a 1983-1997 4×4 Ranger. ( * = Information provided by American Racing)Ĭenter Bore listed for the Ranger ranges from 70.3 – 70.5 depending on the wheel manufacturer and chart you find.
Recommended backspacing on a 15×10 wheel is 4.00 inches with -38mm offset. Recommended backspacing on a 15×8 wheel is 3.75 inches with -19mm offset. Recommended backspacing on a 15×7 wheel is 3.75 inches with -6mm offset. The basic Ranger wheel diameter is either 14×6 or 15×7 inches. The Ford Ranger, Bronco II and Explorer all have a 5×4.5 bolt pattern. This page is a guide as to what size wheels your Ford Ranger takes, and how to measure wheels in general. We see a lot of questions on our site about wheel fitment.
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