Is most likely Your hydrolic clutch slave or master cylinder leaking or low on brake fluid. They can be a real bear to bleed. I have found that most units are very reliable once the system is repaired and all the air removed.
Coolant temp gages tend to read on the cool side, a little below stright up. Make sure you have a stock Therostat. Should be around 196 I think.

Good luck

3 90 Trooper V-6's, 5 speed, 4.3L TBI, 31" BFG AT's, Fender Flairs, Bored intake, 1.6 roller rockers, MSD Coil, Jacobs Omni ignition. Heavy duty torsion bars, Rancho 9000 Shocks CAN'T SPELL, TO OLD TO LEARN, GOD BLESS YOU IF YOU CAN.