Doonan GMC
Meet Our Departments – Doonan GMC

Meet our Staff:

Paul Bishop
Sales Manager

GMC sales manager for Doonan GMC 42 Years in the Automotive Industry, over 30 years with Doonans
Delane Dietz
Certified Sales Associate

I’ve been with Doonan GMC since 2000, and have been a certified sales associate since 2005.
Brett Carper
Certified Sales Associate

I have been in the Great Bend area in automotive sales since 2003, and have been with Doonan GMC since 2008. I have been a GMC certified sales associate since 2009.
JP Postlethwaite
Service Department Manager

Over 40 Years in the Car and Truck repair Business. 40 + years as a certified technician and advisor; Serving you at Doonan GMC since 2011.
Coy Long
Service Advisor

I have been with Doonan GMC since 2007.
Jesse Zerr
Service Technician

Has Been with Doonan GMC since 2003. ASC master Certified since 2004, and has been in the automotive service industry since 1998. Graduated from UTI in Arizona in 1998, and has been GM Certified since 1998.
Trevor Campbell
Service Technician

Has Been with Doonan GMC Since 2006, and has been GM Certified since 2006.
Joel Postlethwaite
Joel Postlethwaite
Service Technician

Worked from 1988 to 2006 As a General Maintenance repairman at a local automotive dealership. From 2006 to 2011 Joel has worked in every Facet of the motorcycle service industry. Joel joined Doonan GMC June of 2011 as a Service Technician, and is currently working on his GM certification.

Mark Reed
Mark Reed
Wrecker Driver

February of 1995 Mark started driving a big rig over the road till 2009. He Joined Doonan GMC June of 2011 as our light duty wrecker driver and has had previous wrecker experience. Also served in the United States Army Reserve as a truck driver with training in heavy truck recovery.

Doonan GMC
Junction Hwy 56 & 156
Great Bend, KS 67530
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