ATI instructions say to NOT to hone their hubs  I've used a bunch of their dampeners without honing them, they all went on fine   I haven't remove all of them after using them but I did and do use antisieze on all new dampeners regardless of brand  I believe the ATI instructions to not hone are for the aluminum hubs. They are supposed to have 0.002" press fit from what I was reading.  Also agree w/ what Rickseeman said above too. I have never had an ATI or Fluidamper that did not need honing to go on correctly.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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