Here's a puzzle

PAULL,

This is a normal wear'n'tear issue with this model Jackaroo. (I have same one)

My most recent 70,000K service at Holden Dealer resulted in a report that "The boots had gone into vacuum. Not a major issue apparently, but needs monitoring.

Sounds like the boot has some sort of pressurizing to help keep out dust, etc.

2000 with 83000kms on it. I looked at the boots on sunday morning, they still look good as new.

I'm aware of one Isuzu Trooper owner who Armoralls his under vehicle rubber fittings once every 3 months. Might sound pedantic, but then again it may extend the life of the rubber.

Ya mine have 'sucked' in a bit as well, but no holes or problems --yet------( fingers crossed) Might have to get under for a fiddle and fix it. Front uni is a bit loose so i probably should go the full re-build of all unis and cv's. Mine is 98 jack 130k manual hubs.

My front right had sucked in, when my mechanic looked at it he said it had a small tear. Replaced the boot, now on hard lock 4wding it clicks. I think my cv is going.

Just a thought if it is sucked in, wouldn't it be sucking in dust as well.

Cheers

Jackablue

Paull,
According to Isuzu this is a normal occurance.

I don't think they are 100% sure but they reckon it is
the air in the boot expanding when the CV heats up (in use)
and expels past the boot tie-straps.
Then when everything cools down air cannot be drawn into boot again.

I guess with the extra flexing from the boots not holding shape, a split
could occur prematurely.

However I haven't heard this happen on other makes with IFS. Strange?

Cheers
Moz