Here's a simple graphic that shows how to measure bolt pattern:

Here's a simple graphic that shows how to measure backspacing:


The easiest way to measure backspace is to lay the wheel face down
onto the ground so the backside of the wheel is facing up. Take a
straight edge and lay it diagonally across the inboard flange of
the wheel. Take a tape measure and measure the distance from where
the straight edge contacts the inboard flange to the hub mounting
pad of the wheel. This measurement is backspace. The above photo
shows three wheels with 2", 3", and 4" backspace.

Here's a simple graphic that shows how to tighten your lug nuts:



IMPORTANT NOTICE: As with all types of wheels retorque lug nuts after
the first 25 miles and at 100 mile intervals until lug torque is maintained.

Always refer to your owner's manual for proper factory torque specifications.