No, Easy
just tap out old outer races from frame & inner race off bottom clamp like normal & fit the new stuff, two things to be wary of though is the upper & the lower may have different I.D.s so measure em up before fitting & some early Allballs kits were not right & had the wrong I.D. in either the top or the bottom,dunno if other kits were also stuffed up but worth checking first
