Are you using modified Suburban sliders on the buckets? You can ignore the bracket pics i sent you via PM bolted to the seat, they were the older style.
You can use a rivet nut on the mounting holes of the weld in floor brackets or weld a nut to the back side. They should be spaced approx 11-7/8 to 12 inches on center from the original bench seat hole. I would just bolt them loose to the bucket to rough align them to tack weld.
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The only difference between Blazer and Suburban seats is the Suburban seats have arm rests. You can bolt Suburban sliders on the K5 seats.As for the sliders I'm not sure. I know they weren't from a truck because the passenger seat isn't stationary, the seats were out of an 85 blazer from what I was told, so maybe the brackets are from the same? What doesn't make sense to me about them being blazer seats is that they don't hinge, so i don't think he knows properly. I'm thinking they are suburban front seats and suburban sliders but having never owned a burb, im just guessing.
Okay yea in the pm I was wondering if you still welded the brackets to the floor or mounted them , I'd rather weld them though since I already have to put 2 holes in the floor for the rear inner bracket bolts.
Rivet bolts. That explains it... I was looking at your mounts and wondering what kinda nice sorcery was going on there. Would those be suitable for the floor as well. Or should a wide flange type capture nut thingy be used, like the factory style?
The only difference between Blazer and Suburban seats is the Suburban seats have arm rests. You can bolt Suburban sliders on the K5 seats.
You can also bolt the bench sliders on the driver side bucket seat with the little adapter you made then shorten the wire. The only difference between pickup and Suburban sliders are the rear section. Pickup cab floors turn up at the back while Suburban floors turn down. However, there is no bench slider with a passenger side handle.
For the floor mounting in the rear, I would tack weld a large fender washer under the floor (or have a helper hold it in place) and rivet nut through the washer and original floor at a minimum. The rivet nut can hold the washer in place and distribute and load offer a wider area. The other option is to cut the hardware from a donor floor and weld it on. Either way, there isn't much load on the seat hardware if people use seat belts in an accident. The seat belts hold you and the seat down to the cab.
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In the event of an accident or roll over, you still want the load to be spread out with a washer and not tear through the sheetmetal. But that load is your body pushing on the seat spread over at least a couple of the mounting points. Think of it as a lever prying the seat bracket over sideways. The seatbelts still hold most of the load in that case, but as a mechanical engineer designing things, I will take that out of the equation and size it as if the seatbelt didn't help so it is overly conservative. In a Suburban or K5 it would be critical for the seat falling over backwards in a rear end collision. In a regular cab, the seat hits the cab in a worst case.I found myself overthinking seat anchoring. Like @kennyw said, the seatbelts are doing all of the hard work. The seat hardware just has to hold the seat in place in a street car.
That is true, there are the lateral loads. Especially the scenario of getting rear ended. I've seen seat backs get broken from that so there is a lot of load on the bolts in those cases.In the event of an accident or roll over, you still want the load to be spread out with a washer and not tear through the sheetmetal. But that load is your body pushing on the seat spread over at least a couple of the mounting points. Think of it as a lever prying the seat bracket over sideways. The seatbelts still hold most of the load in that case, but as a mechanical engineer designing things, I will take that out of the equation and size it as if the seatbelt didn't help so it is overly conservative. In a Suburban or K5 it would be critical for the seat falling over backwards in a rear end collision. In a regular cab, the seat hits the cab in a worst case.
In the event of an accident or roll over, you still want the load to be spread out with a washer and not tear through the sheetmetal. But that load is your body pushing on the seat spread over at least a couple of the mounting points. Think of it as a lever prying the seat bracket over sideways. The seatbelts still hold most of the load in that case, but as a mechanical engineer designing things, I will take that out of the equation and size it as if the seatbelt didn't help so it is overly conservative. In a Suburban or K5 it would be critical for the seat falling over backwards in a rear end collision. In a regular cab, the seat hits the cab in a worst case.
Yea ive only ever used it once before with the previous gauge in this truck with a 350. Hopefully the copper fittings are also 1/8 npt thread for when this gets switched over.I don't trust that plastic line, copper is way better.
... tuition never ends