1998 Dodge Caravan Timing Chain, (Belt?)

As of now, my 1998 Dodge Grand Caravan is running okay. However, I know that cars with high mileage, (mine has 135,000 miles), can have the timing belt die, and the repair is extremely expensive. It's also kind of stressful never knowing if or when it'll happen.

I have two questions:
1. Does this car have a history of the timing belt dieing at about this mileage?
2. Can it be checked now, before it happens, and would that be cheaper than waiting for it to happen?

Thanks,
Richard