Unless I missed it can;t find this already on??

Been restoring a 91 RS TBI 305 5 speed. Replace the burned out Clutch [ along with a lot of other parts} with a Luke, had the Friction disc resurfaced.
Less then 5000 miles and needs replacing again??

I have noticed that the Trans runs hot, Stick Shift gets very Hot after running a while??? Oil was checked was good. [ Don't know what kind of Oil is in it]???
Shifts well and isn't slipping but you can tell off the line when it;s hot, Clutch is far from smooth and of course is loud in reverse??

Any input??