I hate to say it but more often than not, a gritty feeling during clutch actuation is caused by a worn throwout bearing.
You can put some slack in the cable by lifting the ratchet on the pedal action with one hand and pushing against the spring pressure on the toothed quadrant that the ratchet catches on. You can them unhook the end from the lever on the transmission. Check the feel of the cable with the slack. If it feels gritty, go ahead and replace it. I have never had to so I can't talk you through it.
Scott
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Scott
1991, 252K miles, glass hood, police grill, SVO shifter, Catz fogs,
K&N, 73mm MAF, Superchip, PP Y-pipe, Borla cat-back, 190 lph pump
Eibach/Tokico/polyurethane, SHO Shop front & rear strut braces,
16x7.5" Moda R1, 225/55ZR16 Bridgestone RE730, -1 deg camber x 4,
Class II hitch, Silver award at the SHOklahoma Car Show