This kit is rated at 800HP by the manufacture.  

$3400.00 

Individual pieces are available

Datsun 240z 260z 280z complete CV axle conversion kit. 

39 spline stub axles

39 spline companion flange adapter to 930CVs

930 style CVs with chromoly cages and 300M center sections.

boots and bolts

Half Shafts

Stub axles that plug right into a R200 and mates the 930 CV