Where did you get the balancing sand and how is it installed?

You get it at tire places that have it some do some don't. It's the same as balancing beads I believe. Instead of weights on the wheels they just dump it in the tire and put it on the rim. I used to run it in my big dodge. It's a big deal for oversized tires due to how odd they wear usually. Also is used in semi tires

I know a lot of motorcycle guys that use it also.

I didn't think about motorcycles I can't remember if bikes had weights or not? I know my r1 didn't shake at 165 lol but 170 tire was wanting to come off the ground haha

Got mine at 4 wheel parts.

Jesse's right. Just dump a certain amount in the tire and mount it. It's worked out pretty good for me.

Here's some for cheap on ebay...

http://www.ebay.com/itm/Tire-Balanci...663317&vxp=mtr