Prepare your semi truck to be Ready for the Road Ahead™, with the Diamond Roll Up Doors Counterbalance that efficiently distributes the weight of a roll-up door. This replacement component uses number of components in tandem to offset the heavy weight of a roll-up door, allowing operators to open it with ease. Manufactured to maintain the correct center of gravity, reducing the risk of tipping over when operating on uneven terrain. FleetPride is your First Click in Heavy Duty®.