Weather Guard 350-3-01 Installation Manual Download Page 3

3/8"- 6

Hex Nut

STEP 1

STEP 2

STEP 3

Installing the Transfer Tank

Install drain plug into drain hole.

Mark and Drill the Holes

Center the tank evenly between the bed sides and mark 
eight mounting holes. For the “L” shaped tanks, mark 
both holes of the side mounting angles, as well as four 
evenly spaced holes of the longer front mounting angle. 
For the Model 358, mark four holes evenly spaced in 
each mounting angle.
Remove the tank and drill the marked hole locations 
with a 7/16" drill bit.

• If any drilled holes fall between the ribs on 

the lower part of the floor, it will be necessary 
to use floor spacers between the tank mount-
ing angle and the floor.

Secure the Tank

1/4"

Drain Plug with 

Pipe Tape

Pipe Tape

Vented Fuel Cap

Filler Cap Neck

3/8"

Flat Washer

3/8"

Lock Washer

3/8"

Body Washer

3/8-16 x 1-1/2"

Hex Head Bolt

INSTALLATION INSTRUCTIONS 

Note:

 If your truck bed is constructed of aluminum, use zinc rich primer to coat drilled holes.

Note:

Note:

Note:

•  When installing model 352 Transfer Tank with a 27" tool 

box in a full size short bed pickup, the Tank will need to 
be mounted with filler openings toward center of the bed 
to avoid tool box hitting wheel wells. Except full size short 
wheel base Dodge pickup, where a 27" wide box will not fit.

Use one 7/16 x 1-1/2" plastic washer as a barrier between the 
heavy flat washer and the truck bed.

ALUMINUM TRUCK BED INSTALLATION:

 

Before installing filler cap neck, wrap threaded end with 
pipe tape. Do not use liquid or paste plumber’s pipe dope. 
Install the filler cap neck, using a pipe wrench to tighten. 
Install vented fuel cap.

Replace tank and bolt securely. 

•  Use pipe tape when using a manual or electric 

transfer pump on the tank. Transfer tank and pump 
must be grounded to prevent static charge build-up.

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