What Did You Do with Your 80 This Weekend? (78 Viewers)
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I like how these keep the factory look.
Agree on that @leonard_nemoy and they'll see a lot more use as steps than sliders on my 80 as well.
Just noticed that these are sealed and makes me wonder if plumbing these as air tanks could make sense in the future. Air line quick connect on each end would be close to the tires as one benefit. On some of the old farm trucks I used to drive the bumpers were sealed and used as air tanks, refilled at the main shop as needed. With the 80 I could see plumbing in one of the dc compressors for filling these slider tanks.
Anyone have experience with air tanks this size and if how much of/how many 33" tires they could fill?
Just noticed that these are sealed and makes me wonder if plumbing these as air tanks could make sense in the future. Air line quick connect on each end would be close to the tires as one benefit. On some of the old farm trucks I used to drive the bumpers were sealed and used as air tanks, refilled at the main shop as needed. With the 80 I could see plumbing in one of the dc compressors for filling these slider tanks.
Anyone have experience with air tanks this size and if how much of/how many 33" tires they could fill?
Uing quick math to estimate the size of that slider, one slider is 720 cubic inches. At 80 psi it'll hold roughly 4000 cubic inches or 17 gallons.
1 35" tire that's deflated hold about 7700 cubic inches of air at 32 psi.
To calculate you use.
P1*v1=p2*v2
80*720^3=32*v2
(80x720)/32=1800
(7700/1800)*2 = 8 tires
2 because 2 sliders
But I wouldn't want to hit a pressurized cylinder on rocks
i used 35s because I was able to find the volume from an old pirate 4x4 post
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alright, these steel rims have backspacing of 4.5"
The spacers are 1.5"
I would want to try and source 17*12.5 rims with backspace of 3"?
Tires are 35" 12.5 aspect, 17" rim
Would these bit it? or closest?
www.summitracing.com
The spacers are 1.5"
I would want to try and source 17*12.5 rims with backspace of 3"?
Tires are 35" 12.5 aspect, 17" rim
Would these bit it? or closest?
Pro Comp Wheels 97-7983S3.5 Pro Comp Xtreme Rock Crawler Series 97 Steel Black Wheels | Summit Racing
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@Dusten @Bryanseye Excellent feedback, thanks!
I never thought about the risk with the bumpers on the farm trucks but there are plenty of differences from then til now. Is there any information about the risks of an exploding slider with 80psi air in it, from anecdotal to a scientific study? Given how heavy the metal is I figure that if beat on hard enough that a weld would spring a leak but I was assuming there was no risk of an explosion or even of a small bit of metal going flying. Seems to me that the danger would be minimal or non-material to anyone in the area of the slider but I'm aware that I could be totally off based with that assumption.
I never thought about the risk with the bumpers on the farm trucks but there are plenty of differences from then til now. Is there any information about the risks of an exploding slider with 80psi air in it, from anecdotal to a scientific study? Given how heavy the metal is I figure that if beat on hard enough that a weld would spring a leak but I was assuming there was no risk of an explosion or even of a small bit of metal going flying. Seems to me that the danger would be minimal or non-material to anyone in the area of the slider but I'm aware that I could be totally off based with that assumption.
My concern would be that a weld splits but that when it splits it throws even a small amount of shrapnel off and if anyone's near it it could cause minor injuries I wouldn't expect a major injury to occur.
I honestly think it would be easier to just install a small oba then to try and weld those sliders up so that they're airtight and will hold 80 psi
@Dusten
Yeah, the details that would need attention start to add up from managing condensation, adding hose connections that are protected and stay clean, fixing the powder coating after making modifications, etc. I like the idea in a number of ways though and if I were ever in a situation where I needed air as often as I used to on the farm I'd consider making the effort to convert these sliders but I'm definitely not there at this point. The weldwork does look good on these though and I wouldn't be surprised if they are already airtight, though I'm not very experienced with how hard achieving air tight welds on a build like this can be.
Thanks again, the calculations were both impressive and valuable and will be saved in my notes in case I ever revisit this idea.
Yeah, the details that would need attention start to add up from managing condensation, adding hose connections that are protected and stay clean, fixing the powder coating after making modifications, etc. I like the idea in a number of ways though and if I were ever in a situation where I needed air as often as I used to on the farm I'd consider making the effort to convert these sliders but I'm definitely not there at this point. The weldwork does look good on these though and I wouldn't be surprised if they are already airtight, though I'm not very experienced with how hard achieving air tight welds on a build like this can be.
Thanks again, the calculations were both impressive and valuable and will be saved in my notes in case I ever revisit this idea.
Sunday afternoon looked like this. This afternoon I finally had it installed and bolted in. Took two days to install because I spent too much time dealing with small mistakes and fighting the installation, but it's a learning process and I always learn more from doing it wrong then coming around to what works.
Now hooking up the small parts begins.
Now hooking up the small parts begins.
COYS
SILVER Star
I guess my 80's been good this year. Got itself some early Xmas stocking stuffers. Ho ho ho.
That was my first thought too after, "Mmm. Good price."
It's not that they would fill the tires, but to provide a buffer for the compressor while you're moving from tire-to-tire or side-to-side.
Pffft. Ever seen the myth busters episode with the 3000psi scuba tank?
Exactly. The worst thing that would happen would be a medium (not a big) pssssshhhht.
We had a vendor drop off some oxygen tanks in the sun outside our shop one summer day. We heard the valve blow while we were eating lunch a few hundred yards away away inside my grandma's house. The tank left a track in the dirt about 50' into the shop, through the shop without hitting anything and it was wedged under the work bench against the concrete foundation.
That's fancy math. Quick math is that if the tire holds 7700 cu in at 32 psi, it needs about 11 sliders worth of air at 32 psi, or one slider worth at 350 psi.
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I finally had one of my 10yo Michelins blow out the sidewall today. It was on the street in a slow-blow that took about 4 minutes to go flat. A big chunk came out of the side wall for no particular reason. I did 4-wheel over a center divider a couple nights ago. 
I bought some Cooper Discoverer AT3 tires. I didn't want to bump up to a load range E tire, which all the 285/75-16s are. I went with a 265/75-16 in the AT3 4S, which is softer than the LTs. They had some that were load range C, but they were last years model, more $$ and would have taken another week to arrive.
They have great ratings on Tire Rack and are made in the USofA.
Edit: Severe Snow Service Rating too, like that will ever matter around here.
I bought some Cooper Discoverer AT3 tires. I didn't want to bump up to a load range E tire, which all the 285/75-16s are. I went with a 265/75-16 in the AT3 4S, which is softer than the LTs. They had some that were load range C, but they were last years model, more $$ and would have taken another week to arrive.
They have great ratings on Tire Rack and are made in the USofA.
Edit: Severe Snow Service Rating too, like that will ever matter around here.
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This. Snows also have sipes which help immensely.
I run my G003's around 30 - 32 psi. They are fine on fire roads, and places with low maintenance. Places that require more voids and sipes to gain traction really show the short comings of this tire. My snows are Yoko IT's which are very soft and have tons of sipes. I lose the look when they are on, but they are way safer.
The blocks of the G003 tires are just too big to provide good road manners in bad weather. If they had more edges, they'd perform better, but siping them would definitely shorten their life.
I had Duratracs at one point. They don't come in 315/75r16. I have not had good experiences with them, but they may be better if they are studded.
I will probably be going out there again in May or something like that....Moab that is.I will try to remember. A bunch of us from MNOverlander fb group go up regularly to iron range or mesabi. Recommend joining the group, i actually am organizing a trip to moab for some rocklanding. I need another cruiser in the fleet of jeeps and 4Rs
Those look pretty nice and the price is definitely nice but....they look a little weak. The gussets look small, the cat protection weak and the out riggers to the frame look like they would bend quite easily when a 6000 pound rig comes down hard on a rock. Anyone have experience with these?
@nigelsiam A number of forum members have these step sliders and mentions of them go back many years, all with positive reviews from what I've seen. Hopefully some of them can weigh in here on their sense for what these can handle. Mike, who designed/built these, has a lot of experience fabricating different sliders, etc. from what I can see and he was also great to deal with so asking him about his thoughts on the suitability of these for your intended use may also be a good way to learn more. He also makes a tube version for 80s along with step or tube sliders for 100s and has offered these for years so I'm sure he's heard about limitations in them if they've come up.
In person these look and feel very substantial to me and I have confidence that they will work well for my purposes. I weighed the passenger side step yesterday and it came in around 85 pounds, with a lot of that being in the support structures and not just the steps. I'm sure there's a limit for what they can take but that the limit is beyond what I could inflict. I won't be landing on the sliders at speed or from a jump for instance
Here's one thread with a few more pictures of these, I'm sure there are more on mud though:
forum.ih8mud.com
In person these look and feel very substantial to me and I have confidence that they will work well for my purposes. I weighed the passenger side step yesterday and it came in around 85 pounds, with a lot of that being in the support structures and not just the steps. I'm sure there's a limit for what they can take but that the limit is beyond what I could inflict. I won't be landing on the sliders at speed or from a jump for instance
Here's one thread with a few more pictures of these, I'm sure there are more on mud though:
Bump-It Offroad Step Sliders installed
Ok, so maybe it's been a couple months since I installed them... but I thought I would post up some pictures. I actually bought them before I went out to Overland ExpoWest. I like the way flares look and I wanted sliders that still maintained a "factory" look while still being useful as a step...
forum.ih8mud.com
We replaced our old rooftop tent with a new one, and lucky for me I've got a buddy who owns a huge heated warehouse and a forklift. So much easier to wrangle hardware and rack cross bars with mechanical advantage, rather than wrestling all the weight alone in my exposed driveway.
Bonus: the forklift's a Toyota, too!
Bonus: the forklift's a Toyota, too!
i really like them, as on my truck i have more a need for steps than sliders. my only hangup is they appear too long to re-use the factory mud flaps my truck has. is that correct? i'd have to source the factory running board end caps to clean up the look.@nigelsiam A number of forum members have these step sliders and mentions of them go back many years, all with positive reviews from what I've seen. Hopefully some of them can weigh in here on their sense for what these can handle. Mike, who designed/built these, has a lot of experience fabricating different sliders, etc. from what I can see and he was also great to deal with so asking him about his thoughts on the suitability of these for your intended use may also be a good way to learn more. He also makes a tube version for 80s along with step or tube sliders for 100s and has offered these for years so I'm sure he's heard about limitations in them if they've come up.
In person these look and feel very substantial to me and I have confidence that they will work well for my purposes. I weighed the passenger side step yesterday and it came in around 85 pounds, with a lot of that being in the support structures and not just the steps. I'm sure there's a limit for what they can take but that the limit is beyond what I could inflict. I won't be landing on the sliders at speed or from a jump for instance
Here's one thread with a few more pictures of these, I'm sure there are more on mud though:
Bump-It Offroad Step Sliders installed
Ok, so maybe it's been a couple months since I installed them... but I thought I would post up some pictures. I actually bought them before I went out to Overland ExpoWest. I like the way flares look and I wanted sliders that still maintained a "factory" look while still being useful as a step...
