85 mighty max. I was driving and truck stalled out. Now it won't start. Have fire at the coil and gas in not a problem. Is it possible for timing belt to break?

Its the bigger 4cylinder. 2.6l I think

That one doesn't have a timing belt.. It has a chain.. However it still may have a problem..You stated has fire at the coil, not exactly sure how you tested for actual spark.... go ahead and check for spark from the plug wire(s) while helper cranks engine.. IF no spark, remove distributor cap and see it the rotor is actually turning.