Does anyone have some info about these old but well constructed trailers? They came with 6.90 x 9 tires (8 ply). The axels are different than most common leaf spring trailers. I want to put larger tires and rims on mine, but the fenders are so low they may not fit. Anyhow, would really like to hear from anyone regarding their experience and opinions of these trailers. Pics to come soon. Thanks