I did something similar to the OPs install. I decided to mount mine right under the forward torsion bars. There's a large slot in the frame rails where the torsion bars go through. I drilled two 1/4" holes through the bottom of the frame rails so I could run 1/4" bolts through the plastic post and the frame and place nylock nuts on top. There are 4 bolts total, 2 on either end supporting the plastic post. In the pictures you can see where I marked the hole locations on the outer frame rail.
For the cap, I installed an eye-bolt on the end and ran a couple of small bungee cords through it. There are small holes on 2 sides of the post where I slipped the hooks through and bent them over so they can't slip out.
Six 1/2" holes are drilled along the bottom of the post to allow for drainage.
I discovered that Lowes carries the 4.75" x 4.75" post with a 5" x 5" cap which has an insert to take up the extra space. This insert would need to be glued in place. Home Depot carries the 5" x 5" post with a 5" x 5" cap - no insert required. I went with the Home Depot 5 x 5 so I didn't need the insert and it also provides a little more space.
  
__________________
TV: 2002 Toyota Tundra Acess Cab, TRD, 4WD, LS, Tow Package.
Mods: 7-pin Connector, Tekonsha P3, Reese WDH, Milenco Grand Aeros, Leer cap, FS airbags, RVS backup cam & monitor, front hitch.
TM: 2008 2619, A/C, Swing Tongue, 40 gal Tank, Awning, Cabinet over sink, MW drawer.
Mods: Kumho 875 205/R14s, Shower curtain & Oxygenics, Sewer hose stow, Prop reg on top, (2) Trojan 27TMs w/1+2 switch, Marinco A/C plug, RVS backup cam, Honda EU2000i & companion w/extended run tank.
|
Threaded Mode
