Axle cuff wheel side Space Star 1.3 slips out of tensioner again and again

Hello guys! Maybe someone has already had the same problems, and knows a solution, I would be grateful for any good advice! With the Space Star of my father Bj 2000 has only a good 40 TKm down, bds always solve the axle cuffs out of the tensioners. He has already had several different workshops (also original Mitsubishi) put on new tensioners, I had tried it before with desperation already with wire, so far everything without success. Also I wanted to avoid the drive completely expand and attach new cuffs, or let this be done, since the cuffs are apparently in order, the whole action would be quite expensive and expensive, the budget actually forbids such measures. The “specialist workshop” even wanted to install completely new anti-ebe. 🙁 Unfortunately, one can also get quite bad for the rest of new tensioners, they can not be dressed so tightly that the cuff cannot slip out underneath, moreover, the P So I can’t insert a (universal) tensioner, with a screw etc. Maybe someone still has an ingenious idea???