Is it a side push conversion with bracket welded on to the bell housing for the slave cylinder? I originally had the same one fitted on my 2wd Saff. The length of the pushrod has to be spot on or you will either get clutch slip or clutch drag.I think with mine the length had to be shortened.I have the same same Helix 6 paddle clutch.I found it was better than the original cable operation but still not without some problems.I have recently had a new centre push hydraulic clutch system fitted by Julian Godfery in West Sussex and it is a big improvement over the original side push Reyland one.