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Full Moon Bus Club :: Forums :: Tech Talk :: Tech Questions
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1975 bay window swivel seats installation?
Moderators: TN Jed, Lickity Split, docric, sweetbus, Tom and Phaedra, Collie
Author Post
Thu Aug 11 2011, 09:27PM
Registered Member #981
Joined: Mon Jul 11 2011, 01:14AM
Location: hawaii
Posts: 3

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Aloha, I was wondering if anyone knows if it is possible to install swivel seats into a 1975 bay window bus? I know I would have to cut out the firewall, im just not sure on the brackets........? I m having a hard time getting help on the subject. Anything you got for me would be a help! Thank you, Ryan
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Thu Aug 11 2011, 10:19PM

Registered Member #185
Joined: Fri Aug 13 2010, 09:24AM
Location: Salem, MA
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Hey Ryan,

You will need a welder, a set of swivels (well probably just one, explanation in a minute...) and a set of late baywindow or vanagon seats.

Right now, your base most likely looks like this:

The problem with what you currently have is that it is the earlier style seat that doesn't slide forward and backward.... hence the brackets.

In later bays, that was switched to a slider seat base...same as the vanagon swivel base pictured here:

See those notchy things? Thats how the seat can slide front to back and still lock into position.

So for swivels in your bus, you will need to:
1) Remove the partition behind the passenger seat,
2) Remove the current brackets
3) Weld in the new swivel base
4) Then mount the later style seats onto the swivel by sliding them on and you are good to go.

Since all the buses that came with swivel seat brackets were of the sliding variety, the swivel was welded to the slider rail that was in place from the factory... (take a closer look @ the pic above.) When you see a bus with swivel seats, take a close look underneath. You will see the stock rails, and then the swivel rails directly above them... If my current bus had the swivels in place right now, I would show you... but I am still working on that

That all said, I am not 100% certian that you can weld yours directly to the seat base the way it is... you may have to get a little creative w/ your mounting method so that it sits level.

A word about doing both seats though... I have had 5 buses now, and several of them have had swivel bases. From my experience 95% of the time I didn't use the drivers side swivel. You had to open the door just to move the seat into position, then the seat would have to be almost vertical for the door to shut and in my vanagons, the arm rest had to be positioned in such a way to avoid hitting the steering wheel. Really a pain in the butt... So do yourself a favor... go ahead and upgrade the passenger seat to a swivel, but leave the drivers seat be. Its just not worth the hassle, especially if you'll have to cut THAT bulkhead too.

hope that helps!
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Thu Aug 11 2011, 10:26PM

Registered Member #185
Joined: Fri Aug 13 2010, 09:24AM
Location: Salem, MA
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fyi, it has been done before. here is a 74 bus converted:
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Fri Aug 12 2011, 06:23AM
International Locksmith of Mystery

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Joined: Sun Aug 08 2010, 02:27PM
Location: North Charleston, South Carolina
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PS Team Spatula would love your M plate that you have to cut out with the fire wall.
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Fri Aug 12 2011, 10:38AM

Registered Member #197
Joined: Sat Aug 14 2010, 07:56AM
Location: Deland, Fl.
Posts: 337

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I have double swivels in my 85 and added a single swivel to my 74.
Just to add, you do have 1 option to retain the early seats. In 76 only, the westies came with a swivel base that has the same tracks as the 68-76 driver seat. With this, you could keep your existing driver seat and get another driver side seat to slide in on the passenger side. (side note: I am looking for an orange driver seat, or driver seat back cover, with good vinyl, to do just that in my 74)
One thing that was not mentioned in other posts is that to change to the late bus /vanagon seats you will also need to install the floor mounted portion of the driver side seat tracks to mount the driver seat.
Like Ken said, driver side swivel is pretty much pointless. Also be aware that the swivel will raise the seat about an inch, but cutting out the bulkhead will let the seat recline.

I don't know but I been told
You never slow down, you never grow old
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Fri Aug 12 2011, 04:17PM
Registered Member #981
Joined: Mon Jul 11 2011, 01:14AM
Location: hawaii
Posts: 3

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I truely appreciate everyones help! Thank you x 1000
@BOB, So the new seat that I buy wont fit on just the swivel base?

[ Edited Sat Aug 13 2011, 02:21PM ]
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