Joshm,
Did you use Patrick's installation kit (that includes shims, seals, and bearings)? I have not used the 3.38 set but I have used two of Patrick's 3.55 sets. I thought my Suburban was quiet before the conversion. It is even quieter after the conversion (and I think this is due to using all of the new bearings/bushings that come in Patrick's installation kit).
As mentioned above, did you follow the
ring & pinion adjustment and the
ring & pinion backlash adjustment (using
prussian blue )?
Patrick's ring & pinion sets might be made in China, Mexico, or Michigan, but no one has reported quality problems in the past (of course, there might have been a recent bad production run, no matter where they were made).
