OEM roll bar mounting hardware and location

[Ezra]

i am adding an OEM rollbar to my ‘73. I have the smaller jump seats in there already, but will have to relocate them a bit.

The rollbar has been powdercoated and I have new rubber and new hardware for the bar itself, but unsure of the mounting hardware that attaches the bar to the tub itself.

Also could someone share details or photos of exactly where the seats and bar mount to the tub? I don’t want to guess.

Thanks.

 

[PuKE]

If you don't get a reply by end of day - I will post pics when I get home. Sorry to make you wait
I'm currently installing new family cage. Just need to finish painting it.

 

[Living in the Past]

No mystery to locate the roll bar. The bar fits over the rib in the front and flat area in the back. You will see only one rib will look right. Did the thirty-five years ago to my 68 mainly to get three point seat belts. Believe one or two vendors sell the bracket that go underneath in the wheel well with the fixed nuts. Believe those have one larger bolt per location for the rear seat belts. Get that point should be easy to know which is which. I have a 76 and 79 with the factory roll bars.

 

[PuKE]

You shouldn't need to relocate your seat mounts... Everything should bolt in to their existing holes.

 

[Living in the Past]

You shouldn't need to relocate your seat mounts... Everything should bolt in to their existing holes.

If the OP has a 73 then it originally had long jump seats. I installed short jump seats after the roll bar since when my kids were young I ran a forward facing Bronco rear seat. When they were bigger I switched to jump seats. Then with the roll bar already there was easy to locate.

 

[Ezra]

Mine has short jump seats, I suspect those went in when the quarters were replaced. They also seem to be forward, maybe to make room for the speakers.

 

[airon23]

I hope this will help. I don't have my seats mounted right now but the holes are there. Also remember that there is a small backing support under where the roll bar mounts under the fenders. You may want to add those for support as I don't think yours has them because it didn't come with the roll bar stock.

 

[airon23]

a few more if it helps...

 

[Living in the Past]

Mine has short jump seats, I suspect those went in when the quarters were replaced. They also seem to be forward, maybe to make room for the speakers.

View attachment 1789505

View attachment 1789507

Possible a PO didn't have jump seats and found and installed these or used these to fit the speakers.

The pictures posted show how easy it is to install a factory roll bar in the correct place. I would suggest using the bracket that originally spot welded in the wheel well. Drill a small hole where you think it should then place the bracket in and see if the hole line up. The bracket attaches to the vertical and well as the horizontal wheel well. Really no adjustment. If the roll bar is tweaked at all things won't line up. Easier to made adustments to the roll bar than the brackets.

 

[Ezra]

Does anyone have photos of the bracket, or a source to buy them?

 

[MOTOV8R]

Here's a set I pulled from my 79 and sold.

Ccot has them

FJ40 Wheel Well Support Channel

 

[Living in the Past]

Here's a set I pulled from my 79 and sold.

Ccot has them

FJ40 Wheel Well Support Channel

View attachment 1790193

Looking at the pictures can see that one of the welded nuts is larger on each bracket. That one had the seat belt bolted to it. Looks like aftermarket one do not come with welded nuts and pretty pricey. $150 for a set of four.

 

[Ackcruisers]

Just purchased one roll bar wheel well bracket to test fit in my 1976 South American spec Fj40. I’m installing factory roll bar with the original longer jump seats that came with my truck. The FJ Company uses this in their Colombian restorations. I will need to weld some steel channel to bar and then drill and tap for seat mounting bolt.

 

[brian]

the seat fasten to the tub, not the bar.

 

[Ackcruisers]

the seat fasten to the tub, not the bar.

That’s correct for US spec 40’s with the smaller jump seats. Some of the later model SA spec trucks came WORB (without roll bar) and had longer jump seats. The roll bar prohibits the seats from bolting to the tub. There are extensions offered by SOR but I like the additional structure the welded steel provides for the seats.

 

[cims1970fj40]

So I have a 74 and noticed I’m missing 9 out of the 16 captured nuts to mount the roll bar to the tub. My cruiser is a 11/73 build so it was made two months after the factory roll bar came out. That being said I’m not sure if all mounting areas where supposed to have captured nuts are some of them had broken off. The cruiser had been rolled before on the passenger side from a previous PO son so it’s a possibility they broke then.

The captured nuts that are missing on all four mounting areas are the ones that are the closest to outside of the vehicle and the one behind the drivers seat is missing one closest to the center of the vehicle.

 

[Green Bean]

It would be easy enough to either 1) weld in new captured nuts under the wheel well; or 2) simply use a proper size hex nut, flat washer & lock washer and have a helper when you go to tighten. With the rear tire/wheels removed and the vehicle jacked up on jack stands there is plenty of room to get under there. Here you go for the part numbers:
OEM BOLTS: 91651-61030 (M10 x 30mm) 91651-61025 25mm too short
OEM FLAT WASHERS: 94612-11200
OEM SPRING WASHERS: 94511-01200

OEM INNER BOLTS NLA: 90101-11465 (City Racer sells a bolt kit with a set of SAE bolts for the seat belt points)

 

[Will615]

So I have a 74 and noticed I’m missing 9 out of the 16 captured nuts to mount the roll bar to the tub. My cruiser is a 11/73 build so it was made two months after the factory roll bar came out. That being said I’m not sure if all mounting areas where supposed to have captured nuts are some of them had broken off. The cruiser had been rolled before on the passenger side from a previous PO son so it’s a possibility they broke then.

The captured nuts that are missing on all four mounting areas are the ones that are the closest to outside of the vehicle and the one behind the drivers seat is missing one closest to the center of the vehicle.

It may have just been a ‘74 thing, but it’s missing the captive nuts on the outside because the original roll bar had studs welded to the roll bar foot for the outside two fasteners. The inside one missing likely broke off or a PO removed it to use a different bolt.

This thread shows what was used on 74’s: Recognize this roll cage fastener? - https://forum.ih8mud.com/threads/recognize-this-roll-cage-fastener.1050660/

I removed the studs on mine and just used grade 10.9 bolts on the outsides.

 

[cims1970fj40]

It would be easy enough to either 1) weld in new captured nuts under the wheel well; or 2) simply use a proper size hex nut, flat washer & lock washer and have a helper when you go to tighten. With the rear tire/wheels removed and the vehicle jacked up on jack stands there is plenty of room to get under there. Here you go for the part numbers:
OEM BOLTS: 91651-61030 (M10 x 30mm) 91651-61025 25mm too short
OEM FLAT WASHERS: 94612-11200
OEM SPRING WASHERS: 94511-01200

OEM INNER BOLTS NLA: 90101-11465 (City Racer sells a bolt kit with a set of SAE bolts for the seat belt points)

Thanks for the response and the part numbers. I was going to use a lock washer but was curious on others setup because I’m very picky on certain things when it comes to the cruiser.

 

[cims1970fj40]

It may have just been a ‘74 thing, but it’s missing the captive nuts on the outside because the original roll bar had studs welded to the roll bar foot for the outside two fasteners. The inside one missing likely broke off or a PO removed it to use a different bolt.

This thread shows what was used on 74’s: Recognize this roll cage fastener? - https://forum.ih8mud.com/threads/recognize-this-roll-cage-fastener.1050660/

I removed the studs on mine and just used grade 10.9 bolts on the outsides.

That’s funny because when I read this I was like yes I remember having the studs on the original roll bar so that answered that question. I no longer have the original roll bar and went with a later roll bar to mount the 3 point OEM shoulder belt onto the roll bar.