Research shows that, over time, the noise level inside an older tractor/combine cab is apt to increase enough to cause hearing damage as a result of hours and hours of continuous exposure, due to deterioration of the acoustical insulation. One solution is to replace the interior with a pre-cut Noise-Reducing Cab Interior Kit, which can not only quiet the cab, but also help restore its insulation quality, sound suppression, and comfort level. The kit includes foam-backed vinyl panels (pre-cut to accommodate the cab design of over 400 makes/models), adhesives, and instructions for self-installation. The manufacturer also has available sound-absorbing headliners, floor mats, and door seals.