Re: Warranty BS!!!
Just a small note from a person on the "inside" of the Detroit automotive engineering scene for 20+ years.
OEM's such as Chrysler / Fiat spend 10's of millions of dollars to validate their vehicle with a given set of features over given time frame. They want to do their best for the average Joe and show up well in consumer reports. They don't find it advantageous to consider the 1% who wish to mod their vehicles.
In this instance some lead engineer probably spent a couple of million dollars to verify his product would withstand harsh conditions with a presumed rim / tire size. Anything outside this criteria was not tested and cannot be guaranteed. He has no budget to try everything. If he did your JGC would cost $100K. I'd bet my a$$ that none of you would pay that much for your JGC. So keep things in perspective.
Get corporate and legal involved. Why should they pay top dollar for some 1% who wished to mod his vehicle and then something failed. They are only legally obligated to pay for / fix something that is stock and under their pre-calculated warranty. If you contest: they have the budget to discourage you from fighting this in court. IMHO as a business they have the right even though it may tick you off. Summary: don't expect them to pay. If they do be thankful and bless your lucky stars.
If the OEM gave in on every case their profit margin would dwindle. They would have little incentive to continue to produce vehicles. They wouldn't make money. Understand that running a business (no matter how big or how small) is all about making money.
So. Moral of the story... Some of us love to change / enhance our vehicles (as do I). However, carefully research the impact and potential responsibility prior to doing it if you want to file unforeseen future warranty claims. Be prepared to "foot the bill" if things don't go your way.
The cost of modding is much higher than you may originally presume. If you don't like what JGC has to offer than shop elsewhere or be prepared to foot the entire bill.