[DeTomaso] Advantages of CV Half Shafts?

[David Nunn]

The 934 CV's have a 128mm OD, 33 splines and use 12mm bolts vs. the 930's
108mm, 28 splines and 10mm bolts. In addition, most race shops carry
modified 934 CV's that have 35 splines and use half inch bolts.
Lightened/strengthened 930 CV's are common as are gun drilled 300M shafts. 

Years ago, Gary Hall told me the splined, sliding part of the Pantera's
U-Jointed half-shafts locks-up under hard acceleration. As the wheels move
up and down, the splined shafts don't want to slide in and out. This creates
a vibration as the shafts "hammer" themselves in and out of the locked-up
coupling. CV joints don't suffer from this same lock-up issue, so
acceleration is much smoother.   
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   The 934 CV's have a 128mm OD, 33 splines and use 12mm bolts vs. the
   930's 108mm, 28 splines and 10mm bolts. In addition, most race shops
   carry modified 934 CV's that have 35 splines and use half inch bolts.
   Lightened/strengthened 930 CV's are common as are gun drilled 300M
   shafts.

   Years ago, Gary Hall told me the splined, sliding part of the Pantera's
   U-Jointed half-shafts locks-up under hard acceleration. As the wheels
   move up and down, the splined shafts don't want to slide in and out.
   This creates a vibration as the shafts "hammer" themselves in and out
   of the locked-up coupling. CV joints don't suffer from this same
   lock-up issue, so acceleration is much smoother.