Welcome to Gruninger Advanced staff have been providing hydraulic service on site for over eight years, and as of October 2007, we now have a new, six bay shop complete with over head cranes for in house service and repair. We are also. an authorized goodyear master distributor and carry all types of fitting, adaptors, and hose. Whether you need on site plumbing services, mobile equipment or hydraulic component repair, system design, or hose and fittings, give us a call. more... See more text