R 3500 P/U 2WD V8-454 7.4L VIN W 4-bbl (1988)
FIGURE 3
FIGURE 4
SERVICE PROCEDURE
1.
Raise vehicle on hoist.
2.
Remove muffler and tailpipe following procedures in Section 6F - Engine Exhaust, of the appropriate year service manual.
3.
Using an air chisel or a high speed cut off wheel, remove the original muffler heat shield flush with the floor pan, see Figure No. 1.