Welcome to Boyd and Sons Machinery, LLC Are you confused about what undercarriage to use on your equipment? With so many different brands in the market today most manufacturers have sacrificed quality parts to be the cheapest!! Everyone knows with the cost of downtime, service calls and labor, a bargain can soon turn into a disaster with a product failure. That is why we here at Boyd and Sons Machinery have elected to use the most proven undercarriage manufacturers in the world today. Our employees combine for over 200 years experience in selling and servicing undercarriage parts for the mining and construction industries. We realize that only a few companies strive for high quality these days. Why not use undercarriage from the same manufacturers that most OEMs use to get the lowest cost per hour? There is only one way to do it and that is by insisting on only genuine undercarriage parts from Boyd and Sons Machinery!