Chimes going off at 80 miles per hour
80 really fast for that size of a rig, is probably the speed warning system that is built into the engine management system. On some but not all going much faster will kick in the speed governor and that is as fast as it will go due to computer controls.
Search Chevrolet Silverado 2500HD Questions
Chevrolet Silverado 2500HD Experts
Related Models For Sale
Used Cars For Sale