GeoTech 
2006 Nissan Maxima Sedan 3.5 SE 4dr Sedan (3.5L 6cyl 6M)
Hard shifting transmission.
 Hello Guys. For those who have the hard shift problems of your transmission. The fix is about $65. Find shifter kit on eBay. Watch YouTube video on how to fix the 3 selenoids and your car will be running again smoothly. Average time 3-4 hrs. Do take apart the valve assembly because it's only the selenoids. This is a problem from not changing the transmission fluids. You will need mechanical knowledge to do this fix. Hope this helps.