Do I need rear tires?

About a year and a half ago I unfortunately did not know better and purchased inexpensive tires. I have a shake from the rear which becomes most noticeable between 65 - 70. Problem is most of my driving is at 65-70. It bothers me because I finally got my front end to ride beautifully. The tires were originally road balanced and I noticed the driver rear has a lot of weight. The installer mentioned to me they looked out of round when they were being balanced when new. I also learned it does not pay to buy from online companies and have the tires mounted and balanced because because if there is a problem you know how it goes.
I hate to throw out these tires because they look brand new but am I wasting my time trying to have them rebalanced?

Is it an el cheapo brand? I bought Firestones from Tire Rack and had no problem with them.

Yes, they are Milestar's which are made by Nanking. They're probably a knock off to begin with LOL. I asked the rep when I bought them what's the difference between a brand name tire and a no-name brand. He said the technology and brand recognition and I would be fine with the no name brand. Of course I know better now.

If three out of four are good I suppose you could roll the dice on replacing the one bad tire, and use it for a spare.

Or you could treat it as one of those expensive life lessons and move on with a new set of tires from a good brand.

Exactly, thankfully I can probably get away with two, maybe I'll have them check the one with a lot of weight and see if it's savable if not then I know I have to go for the rear tires.

Brian,

Cooper CS5 Gran Touring, best riding tire I have ever had on the Riv,

https://www.tirerack.com/tires/tires.jsp?tireMake=Cooper&tireModel=CS5+Grand+Touring&partnum=26TR6CS5GT

I didn't realize you actually had them on your car but that's exactly what I'm going to buy. We were together when you asked your buddy at the shop. I was just trying to see if I could squeak and not buy the tire LOL.

Make sure to share your experience with this tire after installing and running them on your car.

Np, if it's good enough for Larry I'm sure it will be good enough for me

My Michelin tires were purchased from 4wheelonline, and I am quite pleased because they were purchased at a fair price.

I'm still waiting on my tire place to fix their road balance machine before I do anything.

Brian i think you should take the riv to Belmore next friday night and Smoke those tires when you leave like that 800 hp dodge did LOL

I missed that Dodge lol. I hope one of those geniuses don't get us thrown out of there.