stone slinger bodies


gci reloader

With almost 200 plus combined years in the mobile conveying industry.  We are passionate about this business and your satisfaction is our #1 priority.




Travis Pettijohn  formed GCI Slingers LLC in March 2013, however Travis was no rookie in the material placement business.   Travis's grandfather Joe Petttijohn formed Pettijohn & Sons in 1958.  Travis's father Mike Pettijohn began using conveyors to assist the grueling task of placing gravel and stone into foundations in the late 70's and by the mid 80's Mike, Travis's father was running fleets of dump trucks with conveyors attached to them.  By the late 80's Mike Pettijohn patented the first  “Gravel Shooter” mobile aggregate conveyor system in the US and founded Gravel Conveyors Incorporated in 1989. This makes Travis the 3rd generation of Pettijohn’s who have innovated the foundation business.  Growing up Travis worked at Gravel Conveyors and Pettijohn & Sons during the summers and on break from school.  Travis immediately grew a passion for and loved the challenge  of building  these big trucks and hydraulic systems that powered these machines. Welding, building and assembling conveyors and hydraulic systems always kept Travis on his toes. The biggest challenge back then was how to throw rock "just 20 more feet"!  Read more about Travis and GCI

MARK jordan


Mark has over 29 years experience in the trucking/heavy equipment industry.  Mark got his start in the industry back in 1988 working for his uncles demolition company where he was a driver and assisted with repairs.  From 1990 - 1995 he worked for a small tri-axles company in Greenfield Indiana.  In 1995 Mark began working at Gravel Conveyors Inc. and after two years was offered the Project manager position in Phoenix Arizona.  In 2008 Mark moved back to the corprate headquarters in Zionsville Indiana where he is now the General Manager.

Aaron is the newest member of the GCI management team, his addition brings in a customers perspective to the office.  With nearly a decade of Construction site and crew management Experience, Aaron has worked on the other side of the fence.  After attending Cornerstone University, he has worked in Indiana and California in the construction and foundations industry.  His many years of foundation experience, both commercial and residential has given him insight into not only how Stone Slingers are used, but also how important they will be in the future of the construction industry.

Along with his schooling , management, and work experience, Aaron holds a Class A CDL and is even an experienced Stone Slinger Operator, giving him working knowledge of both the Stone Slinger Industry and the Machines and Parts themselves.  Among his many duties, he heads up our parts department , and along with the rest of the team brings first hand knowledge to troubleshooting equipment problems, planning logistics, and helping our customers from start to finish on projects and problems both big and small.   He is passionate about this industry , these machines, and looks forward to a future with more mobile conveying systems, with Stone Slinger leading the way.




operations MANAGER

heidi green-lynn


Heidi Green-Lynn began working with Gravel Conveyors LLC in January 2017 as Controller.  She comes to the firm with extensive accounting background in the construction and transportation industries.  Because of her experience, she’s been able to accomplish much in a short time.  She works hand in hand with operations and management to fine tune data into understandable company-wide goals and objectives.  We are happy to have her on board and hope for continued growth and stability under her watchful eye.


gravel conveyors inc.