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Old 12-08-2019, 10:45 AM
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Question about Yj Seat/Riser removal

So I will keep this short, but I want to remove the seats and the risers to do a few repairs/clean up to the tub. Before I get WAY in over my head, I am trying to grasp how to get the risers out. The floor bolts are super rusted and aren't coming out willingly.

So here is my idea: remove the seat from the riser (no rust there) and then cut the heads of the riser bolts off inside the tub and drop the stud/rusty bolt combo straight down. From what I can tell (from bestop riser installation notes & part pictures on Quadratic), this should work. But I am reaching out to see if anyone had any better ideas/experience/words of warning before I hack up my risers.

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Old 12-08-2019, 11:20 AM   #2
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I broke a bolt taking my risers out. I had to drill it out. Under your tub, the riser bolts screw into a welded nut under the tub. So either drill it out, or grind the welded nut off and apply a bolt with a nut and big washer. Or if you have a welder, tack the nut back on.

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Old 12-08-2019, 05:35 PM   #3
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If your seat risers bolt in like mine do, the bolt heads are accessed from inside the cab.

Depending on what equipment you have here's how I would go about removing the seat risers. It'll be easier with the seat removed from the riser, but not particularly necessary.

Spraying penetrating oil might not work unless you have a lot of time for it to soak it's way under the riser and onto and down the bolt threads.
First, I'd remove the carpets. Then, go under the Jeep and heat the tip of each bolt and the welded nut as hot as your torch can make it. An oxy/acetylene torch will heat them to red hot quickly. A plumbers propane torch (a Bernzomatic torch) should get the nut/bolt pretty hot, but I don't think it'll get them red hot.
A butane torch would be my last resort and I'm unsure what real good it'd do.

Once you have the first bolt hot, use your ratchet & socket to attempt to turn it out. If you have an impact wrench, give the hot bolt a quick shot to tight and then give it a shot to loosen. A half inch impact wrench will have enough torque to twist the heads off the bolts, so be prudent when loosening or tightening a 5/16 bolt.
If it loosens a bit but won't loosen further, give the shaft of the bolt a shot of your favorite penetrating oil and tighten it back snug.
Loosen, spray, tighten, loosen spray tighten until the bolt comes out.

Then one by one, do the same thing to the remaining bolts. You might break one or two or three, but each welded nut you save will make the extra work of saving it worthwhile.

An oxy/acetylene torch is usually well over a hundred dollars for a cheap one plus the cost of the tanks. You used to be able to rent the tanks, but now I think you have to buy them.
A good propane torch head is the Bernzomatic TS4000 Trigger Start Torch and available on Amazon for under $40.00. The fuel is available at Walmart, or a bunch of sporting goods or tool stores. If you're going to be working on a rusty Jeep, I suggest adding a torch of some sort to your tool kit.
You can buy replacement flange head bolts at NAPA or Fastenal and maybe even your local Home Depot. Be sure to use Anti-Seize when you put the bolts back.

Good Luck, L.M.
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Old 12-08-2019, 09:47 PM   #4
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Here what my 95 looks like underneath
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Old 12-13-2019, 04:52 PM
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Huh...now you guys have me worried I am looking at the wrong nuts. I can't atm, but I will post pics of the bolt I am looking at from underneath the jeep. But my seats have 4 bolts. 2 With hex heads and 2 with flat round heads with no way to remove them. Those 2 are the ones I am considering cutting off. BUT If they are welded on them maybe I wont do it that way.
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Old 12-13-2019, 05:13 PM   #6
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If you can't get to the nuts and have to cut the bolts, you can try and move the risers back or forward an inch and just drill new holes and put the same size bolt with a lock nut and larger washer on the underside.
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Old 12-13-2019, 05:38 PM
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Yea I think that is probably what I will do. Plus, I'm 6'4 so scooting back a bit sounds pretty good haha
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Old 12-13-2019, 06:36 PM   #8
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OP, I just checked my 93. If your Jeep is the same as mine, there are four bolts on the passenger side. On the driver's side, there are two bolts and two flat disks. Get underneath your Jeep and there are two nuts you can remove.
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Old 12-13-2019, 11:04 PM   #9
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The 'flat disc' is a welded in stud... as Al said there will be nuts on those...
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Old 12-14-2019, 12:15 PM   #10
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I should have remembered they were studs , as I am also. LOL.
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Old 12-14-2019, 01:21 PM
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Yep, I found those Studs.... I am going to have to cut those off because the threads on the stud are definitely a little rusty. Hopefully the 2 nuts are okay on the non-stud bolts. I don't want to cut those off as well.
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Old 12-14-2019, 04:16 PM   #12
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Rather than cut them off, If the actual studs are still secure, try soaking with your favorite penetrating oils a day or two then get a couple new grade 8 nuts, run them up and down a few times to clean out the rust from the threads. I wouldn't want to have to "Bubba Hack something as important as having your seats bolted down securely. Just a suggestion...
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Old 12-14-2019, 04:58 PM   #13
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^^^^^this
Plus, try tightening a little, use your favorite penetrating fluid, let sit AWHILE and try to loosen. Repeat as necessary.

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