Speeding

my 99 nissan quest se starts to shake alot at 55 ,65 and 70 i have to speed up for it to go away?

i had the lower ball joints put in,but it still shakes the mechanic says he can’t figure it out because eveything is tight , tie rods, inner and outer,struts ,shocks etc, i have been driving with this shake for about a year and til now has it gotten worse, see firestone in connecticut, did an alignment and since then it has started too shake, i got it align their but i live in florida,they did the work on a sunday along with new brakes all around ,and left outer tie rod, when i got on the expressway heading back home, it started to shake , but firestone had already closed bein it was sunday, people told me it was the tires , but everything was fine til i got the alignment,so i drove it in hopes that it would get misaligned and the shake would go away but no luck, so if any1 knows or has an idea plz help me the van is in excellent condition .just that shake thanks

dude, you have a dodge. of course it shakes.

i say it’s a tire problem. you tires could be out of balance, and driving at high speeds, you just don’t feel it.

go back to the tire place and get them to handle it. they shouldn’t charge you either.

Nick Hogan Crash – 911 Calls