Just had both CV joints replaced in my 1995 Maxima for the first time with 160,000 miles and now there's a vibration in the driveline when accelerating through the gears at certain RPM's, sort of like an oscillation felt through the steering wheel, gas pedal and shift lever (manual transmission). The new half-shafts axles are NAPA. Is this normal and will it go away? Any thoughts on what it might be?