I'm in the process of doing L-track with removable tie downs. I can actually make the back seat removable as well, but there will be some serious consideration before I do that. For safety reasons. The track will hold the seat in a crash and the passengers are still secured via the normal manner with grade 8 bolts to the body for the seat belts, but still. They're small bolts, even though it's spread over 38 of them.
It's the same track that's used with airline seats and I've seen it on military aircraft for hooking up cargo, but requires a lot of holes to be drilled. Looks really good with rubber mat instead of carpet too. I'm doing it in conjunction with a gas tank swap, so anyone looking at this has to keep that in mind when doing this. Only the rear 3 bolts of the center one are blocked by the tank. There's 3 each of the other 2 center tracks that are easier with the tank out, but the longer side tracks can be put in easily. They're on the outside of the frame.
I'm gonna get 1/4 thick rubber strips to protect the top of the tank from the bottom of the only two bolts over it, in the event of an accident. They're short, perfectly distanced to barely poke past the nut so shouldn't be a hazard anyways. It's better than the bolt that was there before though. I'm going to redo the washers with metal stringers before I get too far. But it's the M1A1 tank from Wild Horses, so it's sturdy.
This whole set up is for cargo and not passengers, so if anyone is willing to work around a fold up seat, this would be perfect. I don't have one and to upgrade later may not be an option because of how many tracks I've got in there.
A note before the questions are asked: I'm doing a transmission swap here soon and the front mat will need to be cut properly for the auto. That's why the insulation is poking up. The carpet is still in the front, so I'm waiting for the swap before installing all of that. I want the gas tank in now, so I need to get the rear mat in to get the rails and bolts in. It won't impede proper install of the front though.
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