Mounting points for a 5 point harness???
Thread Starter
TECH Senior Member
Joined: Nov 2001
Posts: 10,341
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Mounting points for a 5 point harness??? I just picked up my RJS five point wrap around dual shoulder harness.
I can get the side points in where the stock seatbelt holes are but I am wondering what you guys did for the crotch strap and the back points? Mine looks like it wraps around the bar but still needs to be attached at the back. I am going to get a crosspiece made up for the crotch strap but the back points I am thinking about mounting where the lower seats bolt in. Has anyone done this? Also 5 points are freaking heavy! I was amazed at how heavy they are!
Thanks
Chris
I can get the side points in where the stock seatbelt holes are but I am wondering what you guys did for the crotch strap and the back points? Mine looks like it wraps around the bar but still needs to be attached at the back. I am going to get a crosspiece made up for the crotch strap but the back points I am thinking about mounting where the lower seats bolt in. Has anyone done this? Also 5 points are freaking heavy! I was amazed at how heavy they are!
Thanks
Chris
The Bull
Joined: Jun 2002
Posts: 3,578
Likes: 2
From: Grand Rapids, MI
Re: Mounting points for a 5 point harness??? Chris,
You can buy a bar that allows you to tie the crotch strap across the front two bolt holes in the stock seat location. If you bolt through the floor, then the strap has to be located as far to the rear of the seat as possible. I have mine bolted through the floor in line with my spine basically. It's done that way to help keep your hips back in the event of the unfortunate. Because there is no hole in the stock seat like a race seat, bolting to the front or rear of the seat will make no difference.
You can buy a bar that allows you to tie the crotch strap across the front two bolt holes in the stock seat location. If you bolt through the floor, then the strap has to be located as far to the rear of the seat as possible. I have mine bolted through the floor in line with my spine basically. It's done that way to help keep your hips back in the event of the unfortunate. Because there is no hole in the stock seat like a race seat, bolting to the front or rear of the seat will make no difference.
Re: Mounting points for a 5 point harness??? Chris, I simply drilled a hole in my floorpan under the front of the seat and mounted that crotch point there. I used two large diameter washers (one on each side of the sheetmetal) and a lock nut. The washers help reinforce the sheetmetal. Plenty strong, remember your nuts are going to hit that strap first 
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Joined: Nov 2001
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From: PURDUE
Re: Mounting points for a 5 point harness??? I am pretty sure that you HAVE to mount your shoulders harnesses to the cross bar on your rollbar.
According to Simpson mounting them to the floor could cause your spine to go into compression in an accident.
According to Simpson mounting them to the floor could cause your spine to go into compression in an accident.
Thread Starter
TECH Senior Member
Joined: Nov 2001
Posts: 10,341
Likes: 1
Re: Mounting points for a 5 point harness??? Thanks guys!
Nineball I thought about the washers too. I think I will probably do that.
I am still confused about what to do about the back straps. The straps will be rolled around the bar if that makes sense. I will try and figure something out tonight..
Cheers
Chris
Nineball I thought about the washers too. I think I will probably do that.
I am still confused about what to do about the back straps. The straps will be rolled around the bar if that makes sense. I will try and figure something out tonight..
Cheers
Chris
TECH Enthusiast
Joined: Jan 2002
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From: las vegas, nev
Re: Mounting points for a 5 point harness??? i mounted my crotch strap to the support where the front seat bolts are. where the top area is cut out, i slid the mounting tab in there and drill a bolt through both sides if the support. seems to be ok there. ill e-mail you a pic
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The Bull
Joined: Jun 2002
Posts: 3,578
Likes: 2
From: Grand Rapids, MI
Re: Mounting points for a 5 point harness??? In a stock OEM seat a front crotch strap can be mounted to a bar that crosses the front mounting bolts. Because OEM seats do not have a provision that allow the strap to approach from a straighter angle underneath the seat there really isn't anything that can be done better. You can bolt through the floor, as long as it's further back under the seat, just make sure you have plenty of strap left.
As far as the shoulder straps, if they loop around the bar you simply use the adjuster to hold it all together. Technically you have to have a small piece of metal welded to the bar to keep the straps aligned on the bar so they can't slide severely in the event of an accident.
If your straps have the small triangle piece with a hole in it then you have the bolt in style. If you look at my cage, they actually cut a hole vertically through the cross bar and then inserted a 1/2" ID pipe into the cross bar and welded that in place. Then you simply slip a 1/2" grade 8 bolt through the cross bar to bolt it in.
If that's the style you have and you don't have a hole in the cross bar, simply remove the small harness bracket from the straps. Wrap the strap around the bar and then loop the end through the adjuster. You should have the loose end on the top side of the adjuster so that you can then fish the end back up through the top portion of the adjuster (figure 8 move). It's kind of hard to explain, but you can shop around the web for some photos of this setup. Or send me a quick message with your number and I can talk you through it.
As far as the shoulder straps, if they loop around the bar you simply use the adjuster to hold it all together. Technically you have to have a small piece of metal welded to the bar to keep the straps aligned on the bar so they can't slide severely in the event of an accident.
If your straps have the small triangle piece with a hole in it then you have the bolt in style. If you look at my cage, they actually cut a hole vertically through the cross bar and then inserted a 1/2" ID pipe into the cross bar and welded that in place. Then you simply slip a 1/2" grade 8 bolt through the cross bar to bolt it in.
If that's the style you have and you don't have a hole in the cross bar, simply remove the small harness bracket from the straps. Wrap the strap around the bar and then loop the end through the adjuster. You should have the loose end on the top side of the adjuster so that you can then fish the end back up through the top portion of the adjuster (figure 8 move). It's kind of hard to explain, but you can shop around the web for some photos of this setup. Or send me a quick message with your number and I can talk you through it.
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Re: Mounting points for a 5 point harness??? I made my crotch brace out of some 1/2" ridged electrical conduit. I flattened each end in a vise and then drilled it to mount on my seat brackets. Depending what kind of brackets you have this may work. It was cheap and easy. I just wrapped my shoulder harnesses around my crossbar.
Re: Mounting points for a 5 point harness??? I made a bar thar runs from one bolt to the other bolt and weled a tab in the midde for my crotch strap.My back strap is on a tab off the roll bar.
