Seat Mounting

[CO71Blazer]

My amazing wife picked up a set of 05 Chevy front seats for my birthday and I've spent two days scouring the forum looking for pics or measurements of mounts, or ideas on how to mount new seats in the front of my K5. I'd like to use the stock holes to avoid making random holes in the floor, which is solid, or having to get inside the rocker boxes. I've seen lots of pics of seats but not much on the mounts. Does anyone have pics or can point me in the right direction for ideas on how to mount these things in the truck? I've been kicking around using some square tube and flat stock to fab some mounts on the front and rear.

[simicrintz]

Can't help with your question, but my DD is an '05 Chevy; those are some comfy seats!!!

[A1971Blazer]

while I cannot give you specific details....if you have the equipment and fab skills..it shouldn't be difficult.

if you want to use the existing holes...then do plenty of measuring of them and perhaps make a template of the dimensions and hole locations.

next decide the location for the swap seats...including the desired height...and fabricate brackets that will put them in that location

you will have to bolt or weld your swap brackets to the frames that are on your swap seats....then bolt to the floor in the stock location.

Again I haven't done this exact swap but I have done many others that would be similar
good luck with it

[Haggar]

The post above is pretty much the process. It ends up depending on what parts of which seats that you want to keep. I just did my seats, and can speak to it, although I don't have any pics handy. My case is 2010 Escalade/Yukon/Tahoe seats. I used the 2nd row seats for the front of the Jimmy, and the 3rd row seat for the rear.

For the drivers seat, I had the original seat slider, on top of which was modified/welded a set of slider mounts for a Scat low back bucket I had previously. In either case (Scat or factory sliders), I think it's a flat piece that bolts go up through and into the seat. So, I took what would become my drivers seat, and removed the black bottom trim, and the Cadillac seat mount and brackets off. Eventually, it was stripped down enough that the seat frame was exposed, in my case the two main rails of the seat were flat tube about 14" apart.MY seat sliders were also flat, 14.625" apart for the holes. I adapted simply by taking some thick flat stock, drilling it and bolting to the seat, and then drilling and tapping a set of holes in the flat bars to bolt to my seat slider.

For my passenger seat, I wanted the Cadillac base to keep the flip and fold of the seat, its much better mechanism than the original flip up seat. So, I just set it all in there, and then started tripping and shimming the base until it fit OK. I needed a 'riser' for the back of the seat bracket (the later seat bracket is offset higher in the back, where the Jimmy's floor is flat). In this case, I welded up a riser from a piece of rectangle tubing, bolted that to the floor in the original holes, and then bolted the seat bracket to the new riser. The front holes lined up so that I was able to drill the new bracket to fit the old holes.

The back seat, again, I stripped the new seats down, to remove all of the stuff that makes them removable from the original Cadillac (you know, you pull the handle and they unclip from the floor..... I didn't need all that). After removing about 15 lbs of brackets (literally about 15 lbs), you get to the seat frame, which again had nice flat mounting points, already with welded nuts and bolts you can reuse from the original frame. I built a new frame from some square tubing I had, and unbolted the original legs from the 1971 seat and welded them to my new frame.

Each seat is a different way of doing things, but in each case, I re-used all of the stock mounting holes in the floor.

My suggestion is to do similar. Look at the new seats, if needed, start removing the original mounts and bottom panel or trim. See what surfaces you have to work with. While I have a welder and metal working tools, the solution I did on the drivers seat could be done with basic saw, drill and tap.

[Haggar]

Here's a pic I found on my phone...

First, from this thread, I steal this pic of what the bottoms look like on the 3rd row seat.

https://www.gm***************/thread...bracket.21499/

They have a plastic bottom, and brackets that clip onto mounting bars. So most people build a frame and then attach to the floor. I wanted space for my amps, and seat to be a little higher for my kids. So I stripped the bottoms and then started removing any cable mechanisms, brackets, etc, that I didn't need. You see the end result, you get to a seat frame with nice flat spots to mount on. They already have bolt holes and you can even reuse the bolts. Then you put back on whatever trim you need to keep things looking nice at the end. All the modifications are only visible from below, so no one can see them.

Again, these are slightly different than yours but should be similar.

[CO71Blazer]

After staring at them for a bit, drinking a beer, and staring some more. Flat stock welded to the stock feet with holes drilled in it for the mounting holes in the truck will work perfect. I was way over thinking the problem. Thanks for the pics and the ideas!

[CO71Blazer]

I got them mounted! Just welded some 2" flat stock to the bottoms of the feet, drilled the holes for the bolts and bolted them in. I sit a little higher, but at 5'9" I still have plenty of room. Much more solid than the old seats that were from a mid 70s Blazer and super comfy.

[notsolo]

Photo's please, integrated seat belts?

[CO71Blazer]

I'm headed out of town for the weekend but I'll get some pics when I get home. Yes they have the integrated belts.

[CO71Blazer]

Sorry for the crappy pics. I basically cut some 3/16" 2" wide flat stock to 20" long. That gave me more than enough to work with width wise. I measured my holes, lined everything up and welded the flat stock to the feet. I misaligned the flat stock when I welded but it was nothing a few passes with a round file couldn't fix. Passenger side was the same. Bolted them down to the stock mounting holes and so far it's solid as a rock and way better than the mid 70s seats that were in there.

Edit: of course they are sideways... I'm on my phone. I'll fix them when I get home.