Drivers seat floor supports

[Hmmv4me]

Hi guys,
I just picked up a 1990 M998 and have been going through it. First order of business was to change out the seats. Found a set of Smittybilt's at Summit on sale for $109 each so I went with them. Only issue I ran into was the drivers seat base is missing parts. It looks like the drivers seat was upgraded to a high back with an adjustable base, however whoever did the upgrade didn't install the floor supports so when you sit in the truck, the floor flexes a lot. from what I have found, it looks like there should be at least to supports in there somewhere. Does anybody have pics and part numbers for them or maybe a spare set?

Thanks

 

[Retiredwarhorses]

They should have 2 floor channel supports that get riveted in for the OEM seat base...
I may have a spare set, have to look, they are kind of rare as the install kit come with the seat kit and gets installed.

 

[papakb]

When I installed my high back seats the install kits weren't available so I removed the original floor brackets and turned them around and riveted them back to fit the high backs. You could do the same thing with a couple of pieces of bar stock aluminum.

 

[Hmmv4me]

They should have 2 floor channel supports that get riveted in for the OEM seat base...
I may have a spare set, have to look, they are kind of rare as the install kit come with the seat kit and gets installed.

Let me know if you find them.

Thanks.

 

[Hmmv4me]

When I installed my high back seats the install kits weren't available so I removed the original floor brackets and turned them around and riveted them back to fit the high backs. You could do the same thing with a couple of pieces of bar stock aluminum.

I will give it a shot if I can't find the correct parts.

Thanks

 

[DREDnot]

 

[Hmmv4me]

View attachment 760688

View attachment 760689

Is that another bracket under the fire extinguisher? Looks like I am missing that as well. Thanks for the pics.

 

[sf1954]

I just upgraded my seat and base. If you provide an email address, I will scan and send you the installation instructions.

 

[Hmmv4me]

Pm sent. Thanks.

 

[sf1954]

I have emailed the instructions. Hope it helps.

 

[Hmmv4me]

Is the correct plate for the fire extinguisher mount?

 

[papakb]

Yes, If you have the original drivers seat this is the fire extinguisher bracket you need. It will not work with the high back seats.

 

[Hmmv4me]

I think I found it.

Thanks. Now all I have left to find is the 2 12343052-2 support brackets.

 

[Hmmv4me]

Ok, so I struck out with all of the vendors on the floor supports. Anybody on the forum got a spare set?

 

[Retiredwarhorses]

Let me know if you find them.

Thanks.

I found them, you won’t like the price though, I only have maybe 2 sets left and I use them often in the shop.

 

[Hmmv4me]

I found them, you won’t like the price though, I only have maybe 2 sets left and I use them often in the shop.

Ill take em if you'll part with em.

 

[juanprado]

Could you just have some flat stock cut and drill your own holes? You could actually make them wider, thicker, and beefier that the oe.

on a 5 ton when I installed global air ride seats, I just made my own supports underneath cab.

 

[Hmmv4me]

Found a set... thanks for your help guys.