No clutch resistance

[truckeroy]

I have a 40 chevy truck with a 55 chevy truck engine in it. I also have an s10 5 spd attached to it. My problem is when I switched the 40 216 for the 235 out of the 55 truck, I now have no resistance to the clutch and pressure plate. Other than swap out the flywheel for the correct tooth count I put every thing back as it was before, including the spacer plate to mount things up properly. Any thoughts on what i did wrong? The throwout bearing is in correctly and sliding forward, but not engaging the pressure plate. I have adjusted the linkage to the max. With no return spring hooked up the clutch pedal will fall to the floor like it is not even hooked up. On my 64 I have plenty of adjustment, but on this truck, not much. I realize this 40 is a little out of the year range for this site, but it does have a 55 engine. Thanks, Roy