Notes: Over 8500 G.V.W.R; Reqs 35274; If welded Assy, replace all Reqd parts; Reg Duty Muffler; Optional; HD for 22100;Over 8500 G.V.W.R; HD Arc-welded construction, recommended for commercial use.
Notes: If welded Assy, replace all Reqd parts; Optional; HD for 22460;Under 8,500lb GVW; Dual Outlet; If welded Assy, replace all Reqd parts; Up to 8500 G.V.W.R.;Under 8,500lb GVW; Dual Outlet; If welded Assy, replace all Reqd parts; Up to 8500 G.V.W.R; Optional; HD for 18239