Basically the same head as the Case 2200 series.  The 996 is very close to the newer 96c and 98c heads, but I can't tell you what exactly has been changed between the models.  They are a much better head than the 974 NH corn heads.  I was looking for one last year for my TR97, but then ended up finding a Drago in my price range and that's what I really wanted.  There are heads out there for both the CR and TR machines, but the cost to convert between the two is pretty high according to the dealers I talked to - in the $3000 range to change a head for a CR to fit a TR.

Good Luck,

Mike