I have a 96 dodge that runs and drives shifts fine but won't go over 45 mph
Cheek your ex conver it sounds stopped up
The catalytic converter is most Lilkely clogged . This is a common probebly with those trucks as my son has a 96 that did the same thing. We took a grinder a cut a couple of slits in the down pipe before the cat and it ran fine until he could afford a new one ,
Catalytic converter is plugged or the exhaust pipe is collapsed.
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