Intermittent knocking while driving

[Mordred]

I agree.  If you have split boots I would be pulling all of the CV's and check each joint for damaged balls or pitting in any of the spider or outer races and replacing all the boots unless they are very flexible.  If you need to replace any (likely) get Lobro CV's, not cheap copies and Lobro boots.  As the boots are tight fit I wouldn't be too concerned about putting clips on the small ends as you will see grease coming out if they aren't tight enough.  If you leave them unclipped it will give them a bit of movement which may stop them splitting.  Replace the bolts is recommended too.  If you don't have the proper 12 point bolts the hex head versions are ok as long as they are high tensile and get the proper anti vibration washers, not standard spring washers. Do them up with a torque wrench to the correct spec in steps.

One of those messy jobs you don't want to cut corners on, as it is a pain when you have to do it all over again too soon.

Adrian