Counter-bore tools and parts...

[Running rough]

something tells me, without this site not nearly as many owner operaters would have the ..... to work on thier own engine, I mean quickserve is a godsend, which other engine manufacturer has free service manuals for a few engines, cummins may not build the best engine but the information is hard to beat, also I wonder how competitive manufacturers software compares to the likes of insite and calterm