It could be several things, 1st check and make sure the wheels are balanced properly, 2nd your shocks could be bad, my guess would be, improper balance of the wheels,or you have a loose wheel, (lug-nuts) make sure all your wheels are tight.
Did it shake before you had the tires put on? It sounds like your tires are out of balance. I had new tires put on and had to go back next day because of shaking at 60 mph. Come to find out the tire balancing was off.
the tires could be out of balence bent rim bad tire
Tires are out of balance. Have the tires balanced.
You need new rotors or they need to go on this belt at the mechanic that re groves them.
A certain speeds, your steering wheel starts to shake.
You're tires weren't balanced properly
they are not balanced properly.
It sounds like the tire or tires are improperly balanced. That is the most likely answer, though it could be other things, too.
first check your balance on you tires local tire shop will usually balance new tires for free or if you have a reciept from where you purchased the tires some tire shops will balance for free if you bought the tires there if tires are not balanced it causes the vechicle to shake at about 30 mph if that's not it i don't know ask the shop who fixed your car to check it out they make sure it was fixed properly and possibly give you a recommendation as to what is causing the shaking if it isn't somthing they did wrongAnswerfirst check your balance on you tires local tire shop will usually balance new tires for free or if you have a reciept from where you purchased the tires some tire shops will balance for free if you bought the tires there if tires are not balanced it causes the vechicle to shake at about 30 mph if that's not it i don't know ask the shop who fixed your car to check it out they make sure it was fixed properly and possibly give you a recommendation as to what is causing the shaking if it isn't somthing they did wrong Answerfirst check your balance on you tires local tire shop will usually balance new tires for free or if you have a reciept from where you purchased the tires some tire shops will balance for free if you bought the tires there if tires are not balanced it causes the vechicle to shake at about 30 mph if that's not it i don't know ask the shop who fixed your car to check it out they make sure it was fixed properly and possibly give you a recommendation as to what is causing the shaking if it isn't somthing they did wrong Answeralso check for warped or bent brake rotors this could somtimes cause car to shake but you would notice it more when you are using the brakes easy way to tell press on the brakes while driving on a stright flat road if the car shakes more or if it pulls to one side you need to get your brakes checked
You may need a new steering shock, rotate tires or need new tires. A new steering dampner shock, or front break rotars.
the vibrations are probably caused by the tires, worn, correct weight not on or in wrong place, i would go back to where you had your tires balanced and have them check it again. tires shaking could indicate that they are out of alignment.
The quick answer is no. Off the top of my head the reason is this. The bolt pattern from the Pathfinder is probably not the same as the Suburban. And the tires on the Pathfinder are probably not rate high enough to carry the weight of the suburban safely.