Just looking at the Swann Insurance extended warranty now (April 2011)
Quotes from a Jeep dealer -
5 star covers all electrical plus mechanical 24months 100,00 Km = $3280
4 star excludes electrical but covers mechanical 24months 100,000 Km = $1870
4 star mechanical 36 months 100,000 Km = $2395
In all the above cases there are some exclusions - Rims/Tyres/Battery/Fluids etc
Having said that a swirl motor "job" on a CRD is close to $2000 and I am just arranging to have my front diff rebuilt under warranty, the rear failed 12 months ago.
Aclnowledging that Jeep parts are definitely NOT cheap, this would pay for itself!!!
EDIT 14APRIL2011 further to this Jeep Extended Factory Warranty to 175,000 Km on the clock or 2 years, whichever comes first $2265.
Keep an eye out on my upcoming post re my trials and tribulations getting my diff repaired under warranty.