The symptom would indicate a wheel/tire/balance problem. You need to have a professional inspect if you are driving at those speeds. also make sure if you drive at 120+ mph, you have "Z" rated tires for safety.
Need new motor mounts..... That's what was wrong with mine.
If you bought this car used, there is a chance it could have a broken motor mount, this would cause the engine to shake very badly as one side of the motor would be rising up, as the other side is trying to hold it down. Under smooth acceleration, a broken motor mount is not very noticeable. Try this,with your foot on the brake, start the car, put the car in reverse, does it clunk?, put the car into neutral, then put the car into drive, any clunking? If so, i would take a close look at the motor mounts.
If you looked in the mirror you probably would. Or if not, it depends
very badly..............
No it was fractured very badly so you should probably start planning his funeral
Have the tires balanced and checked for runnout.
Having a bad rod bearing could cause a truck to make a loud knocking noise and shake when driving at high speeds. The engine having a coolant leak or an engine timing problem could also cause the knocking noise.
Badly very badly
very, very, very, very, very, very, very, very, very, very badly hahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahaha
Very badly
yes very badly
Over-choking or dirty/badly gapped/old spark plugs.