http://www.autoglasswarehouse.com.au/240z-260z-s30-2-dr-coupe-1971-to-1978-240z-260z-s3/
These are the clear glasses.
Just let me know if you want green and thickness of glass required.
Rears are available and side and rear kits are on special.
Fairly good I have had no dramas But I do Fit glass regularly.
The 4mm glass is 2mm thinner so doesn't sit flush in rail rubbers.
But alot easier on the regulator.
the 6mm is also available aswell.