Rock rails with nerf bars using nut zerts

[74 Bronco Billy]

What size bolt did you guys use to attach yr nerf bar rock sliders?

I'm thinking of going stainless with a hex head and flared countersunk fit / look. What have you used and where did you buy yr bolts?

Thanks,

Forrest

Sent from my SM-G996U using Tapatalk

 

[Johnnyb]

I am interested in doing this also, curious to see if anybody has tried it.

 

[74 Bronco Billy]

Moving forward, buddy uses 5/16-18 nut zerts, I'll be doing that. Made a lift by putting a heavy 2 x 10 wood box bolted to a quad jack to lift the rock slider in place. 8 - 3/8" holes drilled. Painted.

Sent from my SM-G996U using Tapatalk

 

[JSBX]

I have the ones from Duff. They came with 3/8 ss button head bolts, nut zerts and a flat bar with 5/16 nut welded on them to match the holes in the back side of the sliders at the bottom. if I remember correctly the flat bar sandwiches the bottom of the rocker panel to the slider. They have been on for 13 years with 13 trips to OCBR and 1 trip to Moab with no problems.

 

[Ol'Blue]

Maybe a combo of nut zerts and through bolts where you can (one through front fender and one in rear quarter) for better strength.

Getting the skid to suck up to the rocker at the door sill was tricky for me. Not perfect and still get a lot of sand and gravel in there. Body panels dont line up that well.

 

[74 Bronco Billy]

Maybe a combo of nut zerts and through bolts where you can (one through front fender and one in rear quarter) for better strength.

Getting the skid to suck up to the rocker at the door sill was tricky for me. Not perfect and still get a lot of sand and gravel in there. Body panels dont line up that well.

Those look nice, and I get it with the body panels not being that straight. Thanks for pics

Sent from my SM-G996U using Tapatalk

 

[bigmuddy]

Maybe a combo of nut zerts and through bolts where you can (one through front fender and one in rear quarter) for better strength.

Getting the skid to suck up to the rocker at the door sill was tricky for me. Not perfect and still get a lot of sand and gravel in there. Body panels dont line up that well.

Why not run a bead of silicone along the top, or perhaps a plastic strip with a bead, similar to what is commonly run under fender flares? That should keep sand and silt out mostly.

 

[Ol'Blue]

Why not run a bead of silicone along the top, or perhaps a plastic strip with a bead, similar to what is commonly run under fender flares? That should keep sand and silt out mostly.

Great idea and my plan to do when I pull them for a repaint. Thanks!

 

[bigmuddy]

Great idea and my plan to do when I pull them for a repaint. Thanks!

Thanks, FYI I would leave silicon off the bottom to let water run out if you go that way.

 

[jeffncs]

Ace Hardware is my source for specialty fasteners - I know my local one sells black oxide countersunk Allen heads but don’t think they have the SS version. You may need to look at McMaster Carr or Grainger (Amazon may even have them!!)

5/16 should be fine if you have enough to spread load but 3/8 may be better.

Side note - Harbor Freight sells a great nursery installation tool. It comes with a bunch of different size heads and some nutserts. Works great for me!

 

[74 Bronco Billy]

The rails are in place. Had to go big. That nutzert installer saved me on the inside ones as there was no room for the standard V shaped install due to frame rail. I will be adding the silicone bead on top soon. The step drill helped up to 1/2" to keep centered. I used the rail in place and drilled through for final hole placement and alignment. Each nutzert felt different when placing. It's the look I wanted, should work well and be serviceable

Sent from my SM-G996U using Tapatalk

 

[gnpenning]

A little late, maybe it will help someone else. Depending on where you live and use, a good coating of fluid film or similar between the panels will help keep rust down.

 

[74 Bronco Billy]

A little late, maybe it will help someone else. Depending on where you live and use, a good coating of fluid film or similar between the panels will help keep rust down.

What is fluid film?

 

[gnpenning]

Not a current contributor or I would post a link. Google it. You will find many local parts stores will carry it.

It's a lanolin based product that you can make yourself.


BTW, beautiful Bronco.

 

[gnpenning]

Here you go.

FLUID FILM | Powerful Corrosion Protection & Lubrication

FLUID FILM® is Eureka’s own unique lanolin-based brand of corrosion preventive and lubricant, used worldwide in a multitude of industries and applications.

www.fluid-film.com

fluid film - Google Search

 

[ntsqd]

FWIW on anything that I expect to carry a load I do not use SS fasteners unless they are radially oversized. SS is basically the same strength as an SAE Grade 2 hex head bolt. Not strong at all.
Black oxide socket heads rust almost immediately, so I don't use those at all. McMaster does sell plated socket head fasteners and I use these a lot!
This will get you going on the plated flathead options: https://www.mcmaster.com/products/f...ews-9/thread-size~5-16-18/finish~zinc-plated/

 

[m_m70]

Black oxide socket heads rust almost immediately, so I don't use those at all

Yup, my experience as well!

 

[ntsqd]

[HIJACK]
What lake is this?

[/HIJACK]

 

[EPB72]

[HIJACK]
What lake is this?

[/HIJACK]

My guess is Stumpy meadows res/lake ,,,nearish to loon lake /rubicon trail