Is there a shock, accident type switch to cut off the fuel pump on the 88 1500?

Junior was out runnin' deer dogs in the woods, he sees a big bump and slows up as much as possible, after that he gets on the gas and has no fuel flow.

I know many vehicles have such a device. If this has one, where is it located and how is it reset?
TIA,
Brent Sr.

 

No inertia switch in a GM.

 

check the fuel pump i would but money that the pump fell off the hanger assembly

 

Thanks folks... turned out that the final try was the pump relay... So it has a new pump, strainer, relay and fortified ground...
Truck runs and junior off to work.
Brent