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19
WELD A BOLT-ON EXTENSION PLATE TO VEHICLE
STEP 1 - INSTALL EXTENSION PLATES - Continued
  Center the extension plate on vehicle body. Before welding extension plate to vehicle 
body, make sure top surface of extension plate is fl ush with fl oor of vehicle body. 
Weld the extension plate to vehicle body sill as shown in FIGS. 19-1 and 19-2.
3/16”
3/16”
EXTENSION 
PLATE
VEHICLE 
BODY
3/16”
EXTENSION PLATE WELDS - VIEWED FROM ABOVE
FIG. 19-1
EXTENSION PLATE WELDS - VIEWED FROM UNDERNEATH
FIG. 19-2
CAUTION
To preserve the corrosion resistance properties of the galvanized fi nish, 
MAXON recommends bolting the galvanized extension plate to vehicle.
3/16”
EXTENSION PLATE
VEHICLE BODY
REAR SILL
WELD LENGTH & SPACE:
2”- 11 3/4” (  96”W VEHICLE)
2”- 12 1/2” (102”W VEHICLE)
WELD LENGTH & SPACE:
2”- 11 3/4” (  96”W VEHICLE)
2”- 12 1/2” (102”W VEHICLE)