Is there an DIY way to fit Kesher ball joints?

[VEEMAN]

Thanks for the replies. Took my Kerscher ball joints to my mates workshop and it took over 4 tons of pressure to press in.
Had no problems with removing the old ball joints, just wacked with a hammer and the flew out. They looked new but could not have been fitted correctly in the first place.
Any way sorted now, thanks once more.
Cheers
VEEMAN