Have 2 GMC w4500 box trucks that need some TLC. These have the Chevy V8 350 in them from about 2004. They run and drive but run rough and have codes. Need to run diagnostics with old, etc.
Need somebody who has worked on these exact trucks to check the wiring, engine performance, abs, etc.
PLEASE don't respond if you don't already know these trucks as they are all known to have the same issues.
do NOT contact me with unsolicited services or offers