Ditto, Luk Gold. I have 215k on mine.
It had a center force in it that still held good but the fingers were worn to the point that it was really hard to push the clutch in.
When I installed the Luk I put a new complete Oem master and slave setup in along with new throw out bearing and pilot bearing.
The clutch and flywheel I actually picked up used with 800 miles on it out of a wreck for $100.
It wasn't babied either. Knoxville TN to Winsted CT pulling a 1981 VW westfalia camper. Dale City VA to Winsted CT pulling a 1989 Comanche with no 1st gear in the 98 XJ that the clutch is in. 40k with no 1st gear.
Towing a half dozen or so XJ's and MJ's locally.
Plus wheeling it occaisonally.
Has 431k now on the original motor.
1st AX15 lasted 340k.