today i took the 38's off the 8 inch rim and put them on the 12 inch rims like i said i would in yesterdays post. And i did some research on balancing tires with airsoft bb's and pellets gun bb's and golf balls. So i decided to try the metal bb's from a regular bb gun. .177 cal. (Walmart for 4 bucks). Went on the innovativebalancing website were they sell special bb's and they had a chart saying how many ounces of bb's go in a specific tire. 38inch by 12 rim= 10 ounces of bb's per tire. So i went to the post office and used their scale to measure 10 ounces of bb's in four seperate bags. Went mounting the tires, i ask the guy to drop them in the tire before mounting of the rim. BIG DIFFERENCE, no joke. when driving, you get shimmy and then it just evens out. now i can go over 50 without shimmy. Took it to 70 today with 38 swampers with just bb's and smooth. Highly recommend it. Makes a cool sound when coming to a stop to, hopefully i wont get annoyed by it later on. I am extremely impressed and amazed. Just thought i should share in case anyone else is having trouble balancing tires over 35 inches.