|Handy Hank's Tip: As a rule of thumb,
if the hard top is strong enough to walk on, it is usually
strong enough to mount an outrigger on it .
- If you have foam or core filled hardtop make
sure its thickness does not exceed 2-1/2".
- Select the mounting location of the Grand Slam
Mount keeping in mind that the center of the 3" hole
must be a minimum of 7-1/2" away from anything
that might interfere with the rotation of the handle
underneath the hard top.
- Using the template, mark the center of the 3" hole
in both port and starboard locations.
- With a 3" hole saw, make the holes in the hard
- Insert the Grand Slam Base into the hole with
the outrigger arm laying down resting on the lip
facing the stern. It is easier to tell if
the base is straight if you place an outrigger
in the tube.
- With the outrigger facing straight back, mark
where the four mounting holes have to be drilled
on both port and starboard locations.
- Using a 5/16" drill bit drill the four mounting
holes in each location.
- If your hardtop is foam or core filled, it is
recommended that you use spacers (small lengths
of tubing) to fit inside where the mounting bolts
pass through. This will prevent the top from
compressing when you tighten the bolts.
- Put a bead of silicone on the underside of the
flat plate of the Grand Slam to form a seal around
- Place the Grand Slam Mount so that the barrel
goes through the 3" hole and line up the four mounting
holes with the four holes in the base.
- Install the four mounting bolts down through
the Grand Slam Mount, through the hardtop and through
the backing plate on the underside of the hardtop.
- Install nuts and washers and tighten the bolts
making sure that you do not compress the hardtop.
- Rotate the bottom of the Grand Slam to align
it with the handle hole and install the operating
lever with the nylon bushings by pushing it firmly
in and slightly down until you feel the nylon bushings
seat into the sockets.
- With the handle all the way in, hand tighten
the collar to secure the handle.
- Repeat steps 9 through 14 on the other Grand
Installing Grand Slam On T-Top or Arch
These usually have an aluminum plate running for and aft on each side between the brace bars.
Unlace the canvas enough to expose the aluminum strips of the T-Top.
- To find the proper location of the aluminum plate keep in mind that the center of the 3" hole must be 7-1/2" away from any horizontal or vertical tubing that might prevent the Grand Slam handle from rotating outboard.
- If you are going to install your own plates, un-lace the canvas and weld aluminum plates to the aluminum strips running fore and aft on either side of the T-top. The plates must have the minimum dimensions of: 3/8" thick X 5" wide X 7" long and they should be welded on 3 sides. If you are using our weld-on mounting plate GSE-1939 or our clamp-on mounting plate GSE-1002 steps 4-8 have been done for you. It is not necessary to un-lace the canvas if you are using our clamp-on mounting plate.
- Using the template, mark the center of the 3" hole making sure that it is at least 7-1/2" away from anything that might interfere with the handle rotation. Using a 3" hole saw, drill a 3" hole through the plate.
- Insert the Grand Slam Base into the 3" hole with the arm facing aft. Install an outrigger in the tube to make sure that the outrigger is facing straight back.
- Mark where the four 5/16" mounting holes should go and remove the outrigger and the Grand Slam Base.
- Drill the four 5/16" mounting holes.
- Repeat steps 4 through 7 on the other plate.
- Lace up the canvas
- With a razor knife cut an X in the canvas at the 3" holes in both of the aluminum plates.
- Put a bead of silicone on the underside of the Grand Slam Bases around the barrel and insert into the holes through the canvas top making sure the outrigger tubes are facing aft and install the bolts and nuts.
- Install the operating lever with the two white bushings by pushing it into the hole and moving it up and down until you hear it click in and hand tighten the locking ring. Test the Grand Slam by pulling down o the handle and rotate into different positions all the way around.
Your Grand Slam bases are now installed.
Click here to see installation instructions for small flush mount bases (PDF format).
Click here to see installation instructions for large flush mount bases (PDF format).
Click here to see information on installations of the Grand Slam Mount (PDF format).