The prospect of a timing chain replacement certainly gives me pause and my neighbor has mentioned that he is probably getting ready to replace it on his high-mileage LR4. It'd be nice if it went bad before my extended warranty as I believe it is covered but would have to double check.I got rid of mine when it went past 100,000. The cost of the timing chain replacement was just too flippin high for me to justify. I loved it, it was a great truck but I missed having a Jeep.
Cheers