300zx steering wheel spline count and diameter

Hi, can anyone tell me the spline count and diameter on the 300zx steering wheel hub?

 

34 x 17.5mm

 

Thanks for the reply, are there two different 300zx spline counts? Im after a NRG short hub for a 260z and NRG says on their website that the SRK-140H adapter fits both the earlier Zs and the later Zs.

http://crowderscustomizing.com/index.php?l=product_list&c=1174

 

To my knowledge all Z32 steering wheels have the same spline, the reason for the non-turbo tag is that the hub does not support HICAS, my understanding is that NA's do not have HICAS.