Here's how you use the clamp kit:
First, place gasket on cylinder base, then slide the flat plate with the slot in it, from front straddling the rod. Then install your piston bearing pin and clips and rings. Select the correct red band to compress the rings leaving the top 1/8 " of the piston exposed. We suggest you lube the cylinder with a small amount of premix oil, then slide the cylinder over the piston and install screws.