Agree with all the above + it may be worth removing ICV 2 small bolts and give a clean with carb cleaner or the like, just did the very same this week and cured my idle issues "cutting out whilst in any gear other than N"
spent a couple of worthwhile hours conditioning the leather seats very satisfying and her indoors commented that the bloody car get's more attention than her :blabla:
Island 4x4 are based in Maidstone Kent and possibly the most competitive price wise. As Datatek says Arnott gen 2's are the nuts but Dunlops will do the job.
A common problem with all ZF 4HP22/24 boxes is the failure of the one way "sprag" clutch. Once the cams in this one way sprag clutch "flip" the unit will slip both ways resulting in the vehicle only pulling off with the shifter in position "1" not "D" and driving OK when shifted up to position...