The not-so-definitive guide to Sienna seats

Mxkutch

Observer
I have the pics but I'm not sure how to post them so heres the url

https://ibb.co/nio0yF
https://ibb.co/dztpsa
https://ibb.co/itshCa
https://ibb.co/eniB5v
 
Last edited:

225

Village Idiot
I have the pics but I'm not sure how to post them so heres the url

https://ibb.co/nio0yF
https://ibb.co/dztpsa
https://ibb.co/itshCa
https://ibb.co/eniB5v


Here you go:







I ordered the non reclining seats. I'm sure they have the same mounts.

Can I use the MG brackets for the front seats?

Here they are:

0FoFgiqh.jpg


qf6C5Vlh.jpg
 

mgmetalworks

Explorer
The non-recliner seats fit but they're farther forward on the mount. Just keep that in mind. You may need to drill some holes to shift the seat adapter back on the slides.
 

Mxkutch

Observer
Installed my front seats yesterday and I love them. Went with 2017 reclining sienna seats for the driver and passanger, with the custom bases from Ujoint. They sit amazing and ride really nice.

My question is does anyone else who has the swivel base in the passenger seat, move around more than the obvious. My wife says there is some play in the seat when we drive even when it is locked. I have checked everything and it's all tight so I'm not sure where the movement is coming from unless the base just doesn't lock fully.

Any pointers would help.
 

coulter6

Observer
My question is does anyone else who has the swivel base in the passenger seat, move around more than the obvious. My wife says there is some play in the seat when we drive even when it is locked. I have checked everything and it's all tight so I'm not sure where the movement is coming from unless the base just doesn't lock fully.

Any pointers would help.

Yes, my wife said the same thing. There is a little play in the latch and the seat does move a bit. I cut a short piece of 1x2 and wedged it under the seat. No more movement and easy to remove when you want to swivel the seat.
 

k9lestat

Expedition Leader
how are the passengers in those seats supposed to see that big old tv screen anyhow? just sayn.:coffeedrink:
 

Lurkerlou

New member
To anyone thats used the Ujoint seat bases with the L Track I have a few questions.
1 are the holes in the bases lined up with the L track spacing (basically full inch measurements)?
2 is the price for two seat bases for the $250?

I have a lot of L track in my conversion already and set aside a few full lengths of tapered L track for the floor a long time ago and plan on mounting the Sienna seats this way. The bases look great but not having a tape measure or being able to see them in person I was wondering if anyone had the measurements for the hole spacing and clarification on the pricing without having to bug Chris at Ujoint.

Thanks for any insight you may have
 

mgmetalworks

Explorer
Hole spacing is 11"x 11". The bases are sold in pairs and have been used with Ltrack in a few builds on here. Vandiana build is one of them.
 

Lurkerlou

New member
Thanks mgmetalworks for the info and all the hard work of designing these brackets.

I'll post up some pictures after the instal.

This thread has a lot of really great information.
 
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Smoker

Observer
Awesome thread. Many thanks to MG for the innovation and all those who have installed the seats, especially with L-track, and shared their experience here and in VANdiana's thread. I've learned a ton in preparation for installing in my EB. I have a few questions for those who installed with L-track.
1. Which style track did you use: Aircraft, Angled or Recessed? These all appear to be the same thickness, but I was wondering if they are equivalent in strength.
2. I see that US Cargo sells the Fastener Pack, which are the 1 1/2 inch bolts with washers. Did you use these, or something larger/longer/stronger, particularly if bolting through flooring, insulation, washers, etc.
3. The washers in the Fastener Pack seem rather small. Did you use these or something beefier, or even add a backer plate for more pull strength?
4. Just starting my build, so I haven't yet drilled through my van floor and was wondering if you were able to get bolts in every hole in the track, or if you encountered obstructions. Basically looking for any tips on not drilling into anything important below where the tracks line up based on Sienna seat base. I intend to install about 10', so can get cargo tie downs front to back when needed.

Thanks in advance to any advice. Apologies if these were previously addressed; I read through all of the Sienna related posts but may have missed something.
 

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