[Cartmaster]

I can't really say why it happens with those extensions apart from the txt spindles were not strong enough to take a pounding with them fitted. I had these issues way back in time and then aquired an ST350. Looking at those made me realise the spindles were a perfect solution to my problem. Once I fitted them to a jakes axle lift, I never had one break. Still use them now but it has become an expensive modification even if you can get them. Supplies in the UK are difficult to find these days.