Do it! 90% of engines with timing belts are "interference" engines, meaning the valves will hit the pistons if the belt breaks, or is not timed correctly. Since I don't know what engine you have, other than it is in a car I don't wanna cry in, I couldn't say for sure if yours is an interference engine or not...but I'd bet it is.
60k is the "normal" recommended interval for timing belts changes, mostly due to the belt deteriorating, since it is a rubber compound...much like your tires. Even without that many miles, the belt(s) will deteriorate. Mileage tends to stretch them, and can actually strip some of the teeth off, which will lead to the cam(s) being out of whack(hi-tech term) in regards to piston location in the hole. In fact, just turning the engine/crankshaft "backwards", even by hand, can damage the belt(s) in most cases.
$2200 to repair one that the belt has broken on sounds kinda cheap. Depends on how many valves get hammered, and how bad they gouge up the tops of the pistons...
Warranty will NOT cover it if the belts haven't been serviced at the recommended intervals, either...
Adams' Apple2009-11-12 21:12:37______________
Joel Adams
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"