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Seatbelts to harnesses. What's involved?


Josh NZ

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Hey all. I was fantasizing the other day about when I finally get my Landy road legal and it occurred to me that if I was to remove my roof plus door tops and run just the windscreen, where do my seatbelts mount? As far as I know, the only mount is on the sides of the cab. Has anyone done or know of anyone who has done a swap to harnesses or something similar? Is my roofless fantasy even feasible? If yes, anyone know exactly what would be involved in making the change?

I reckoned that the most likely place would be to mount them to the bar bit that the front seats rest against. But I am no expert, so I thought I'd ask the knowledgeable lot who i have to come to love, the LR4x4 lads!

Please share your thoughts, it would be cool to see a think-tank of sorts and bounce some ideas round

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Military seat belt hoop, either ex-mod, pattern, or home made. P&P make one I think, I'm making my own from 1½" BSP tubing. Roofless is entirely feasable, and reguarly to be seen in Series circles. Some people do mount the reels on the rear bulkhead, I don't like them because they pull down on your shoulder.

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^^^^^^

What they said.

Harnesses are ok in a comp motor when rules dictate that you wear them, pain in the arse in a road going vehicle.

You will find yourself loosening them off so you can move which negates the point of fitting them!

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If I was to just shift the mounting points of the belts, is the rear bulkhead a good place? Im not bothered about seatbelt comfort as I won't be doing a lot of road miles, mostly over landing and hunting trips. What's the deal with the legal side of things regarding shifting mounts? That craddocks bar looks the part!! Might recreate my own version of that ;)

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i asked the same question a few weeks back and got shot down in flames and suggested that the only real safe way was to mount to a roll bar/cage, but i still thing the top of the bulkhead is doable, may ask again when i get nearer the time for them unless you get an answer first.

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i asked the same question a few weeks back and got shot down in flames and suggested that the only real safe way was to mount to a roll bar/cage, but i still thing the top of the bulkhead is doable, may ask again when i get nearer the time for them unless you get an answer first.

In fairness, it would be unwise to recommend anything but the safest option, what with the risk of being sued and all.

Personally I'd not recommend a bulkhead mounting, as in the event of a crash (which is the point) the forces involved would drive you down into the seat, collapsing your spine, or causing you to submarine in the seat - sliding forward INTO the direction of the impact.

But in the real world bulkhead mountings would probably rip out before your spine is damaged.

Whatever you do, consider that in the event of a crash the power involved is huge - I actually doubt that the standard shoulder mounting for a series hard top is adequate, but, as it's manufacturer approved it's fine.

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Mmm, a sobering thought gazzar! I actually found myself think thinking the same thing about the factory seat belts when I first got my landy. However, I don't intend to hit the highway much at all, I would say that the max speed I would do on a given day would be 20-30mph and I know it still doesn't justify the actions of changing the seatbelt position, I think I will try bulkhead mount and see how I feel about it. Can't say I'll be testing it crash wise though haha

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At the very least please consider putting in a hoop and using that. A decent engineering/fabricator should be able to make one up for you at minimal cost. Get the top mount just above your shoulder. As long as the hoop is well attached to the chassis it would be more than adequate.

Remember that bad things usually happen as a consequence of a sequence of events, and it would be the one day that you HAD to go fast on the highway that it all goes horribly wrong!

G.

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I would say its possible, there's ample room on the rear bulkhead just in front of where the rear wall of the cab sits. Youd just have to use pretty low profile mounting plates etc. plus your could make it so its nearly tight to the shape of the cab which would help it blend in nicely

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I've got a Trakkers fabric truck cab fitted after removing the hard roof on my 90

The quickest solution is to put harnesses in, and mine are attached to the bulkhead with a spreader plate behind the seats (which when you think about it should possibly be on the outside not the inside of the bulkhead)

and it has passed numerous MOTs with the harnesses here.

However, I reiterate what has been said above with respect to what a PITA they are.

Once strapped in you can't even reach the handbrake for example.

I've been looking for a solution to allow me to put inertia belts back in but can't find one as yet and even Trakkers don't have an answer for me. Both belt hoops linked to above fit to the tub cappings which don't work for me because of the truck cab.

I'm thinking of contacting Safety Devices to see if I can get the bulkhead hoops only from them as they are more substantial and don't rely on body cappings for fitting.

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Yeah, I also thought harnesses for a quick and simple solution but having been educated on the pros and cons I think a hoop is the way to go, I will get a low profile version of the craddock unit made and mount some inertia belts from there. I'm not a fan of the static belts, I'm so used to having modern jappas that I may as well use inertia belts. Hopefully none of this will affect my insurance cost! It's uninsured currently because it's not road legal but if I can sort the belts before I go in for my cert I can hopefully convince the fellow to write it in as standard. I wonder if any different legalities exist in NZ compared to England

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Yeah, I also thought harnesses for a quick and simple solution but having been educated on the pros and cons I think a hoop is the way to go, I will get a low profile version of the craddock unit made and mount some inertia belts from there. I'm not a fan of the static belts, I'm so used to having modern jappas that I may as well use inertia belts. Hopefully none of this will affect my insurance cost! It's uninsured currently because it's not road legal but if I can sort the belts before I go in for my cert I can hopefully convince the fellow to write it in as standard. I wonder if any different legalities exist in NZ compared to England

Everywhere is different. The English MOT is a fairly gentle exercise compared to the Irish NCT, and I believe that in France you are extremely restricted as to what you can do in terms of modifications.

All good fun!

G.

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Mine's a softtop and I didn;t like the idea of not having an roll over protection at all.. I wanted to do a full internal cage but that was not going to work. My head would be too close to the tubework.

So it ended up as a rollhoop. That's where I fixed my harnesses onto. Forces, even at 30mph, are HUGE! So the mountings have to be very very solid!

2012-04-15175329.jpg

Here's lots of info:

http://www.pirate4x4.com/tech/billavista/Harnesses/

Happy reading ;)

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