Clutch fork walking out of my TR3650
I have an '03 GT with stock TR3650 tranny, Spec 2+LPR clutch and flywheel. Occasionally after driving for a while, the clutch fork tends to back out of the tranny and start rubbing against the cover. It did it about a year ago right before I got to my destination. I let the car sit for a few hours, and then somehow it fixed itself. The other day I was driving and I started hearing a weird noise when I depressed the pedal, and then it refused to go down all the way, so today I had to jack the car up, take the cover off and pop the fork in the rest of the way. Is it a poorly adjusted cable? Should I not be pushing the pedal so far? Or is it just time to pull the tranny and replace the fork? Ive been a mechanic for 10 years and Ive never replaced a clutch fork, or seen one go bad. Please let me know what you think, thanks!
'03 Sonic Blue GT STOCK engine 5spd, Procharger P1SC 10?psi 413rwhp 5200RPM, Accel coils, 42lb injectors, 90mm MAF, Walbro 255, MAFia AFM Powerpipe, SPEC 2+LPR clutch & fly, FRPP driveshaft, UPR subconnectors control arms springs, Cobra swaybars, Mach1 shocks, Moser 31 axles, , Eaton diff, 373 gears