there is certain mph's that do that. ur tires are prolly off balance or your alignment needs to be fixed.start off by balancing and rotating ur tires.and if it shakes when the brakes applied the you need to check your rotors.
No, There would not be a 4500 version of Silverado.
A 4L60E would not fit on a 91 Silverado because of the different dimensions.
you can't anymore. Shake It Up is over now. The cast didn't even know that would be their last season in the US Shake It Up version now for the India Version of shake it up that I know of it's still going on strong
What you are probably seeing is when the young ones all look like females and when they are going to be fed you could say they get "excited" and shake and quiver.
I would go and get the tires balanced, FIRST. You could have front end parts worn too. Check and replace as needed.
The transmission is not shifting in and out of gear or your front joint is going bad
Tire out of balance or bent wheel.
The engine may spit,spudder,miss,shake at idle. Then all of a sudden straighten right up and run like a new one. Back and forth.
U-Joints are busted.
it could be that you need an alignment on the wheels.
did you find out??? I'm having the same problem
The blowe motor resistor can cause that.