WARNING: This page is about a different car, the 2007 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
Measure inner diameter of piston pin bushing.
Standard Grade No. 0
: 22.000 - 22.006 mm (0.8661 - 0.8664 in)
Grade No. 1
: 22.006 - 22.012 mm (0.8664 - 0.8666 in)
Fig 1: Checking Connecting Rod Bushing Inner Diameter (Small End)