Dually guys, need your opinions!

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bluex

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Who would buy a kit of rear fender bolts? Would you prefer it per fender, a kit for both fenders, individual bolts? What would that be worth to you in each option?

I can't find these anywhere an I'm looking at having some made for 73-98 but it's a steep initial buy in an waaayyyy more than I'd ever need.

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legopnuematic

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What diameters/thread pitch are the ends? Is the one end for a thread cutting nut?

Oh and overall length?
 
PrairieDrifter

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I've never messed with dually fenders but I would probably just do nutserts(rivnuts) then use your favorite flavor of bolts.
 
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I've never messed with dually fenders I'm assuming the coarse end threads into threaded inserts in the bed. Then fenders bolt to the finer threads with the spacer locating the fenders. I would investigate tapping the coarse inserts to a common thread,using common studs and making the locating spacers to fit on the studs,if I couldn't find appropriate washers to use as the spacers. My .02
 
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bluex

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legopnuematic said:
What diameters/thread pitch are the ends? Is the one end for a thread cutting nut?

Oh and overall length?
Click to expand...

One side is 5/16-18, the other is thread cutting into the fiberglass of the fender. OL is about 2"

PrairieDrifter said:
I've never messed with dually fenders but I would probably just do nutserts(rivnuts) then use your favorite flavor of bolts.
Click to expand...

Rivnuts would bust the fiberglass when you try to set/crimp them. The holes into the fender are blind. I guess you could epoxy a rivnut in but then you would have a tough time installing them. The studs give you something to "hang" them on while you go between the inner an outer bedside to put on the nuts/washers. Same problem with epoxy some all thread, what do you in the future when they are damaged?

Ricko1966 said:
I've never messed with dually fenders I'm assuming the coarse end threads into threaded inserts in the bed. Then fenders bolt to the finer threads with the spacer locating the fenders. I would investigate tapping the coarse inserts to a common thread,using common studs and making the locating spacers to fit on the studs,if I couldn't find appropriate washers to use as the spacers. My .02
Click to expand...

No the corse side threads into a boss molded into the fender an cuts its own threads. The standard 5/16 side goes through a hole in the bedside then you put on a nut an washers. There is a gap guard installed after to try an keep road debis off them but it apparently doesn't work very well.
 
legopnuematic

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Thank you, I can find 1/4” or 6mm pretty easily. Your example on the right looks to be a “hilo” thread form.

These are 1/4, might be worth to contact them and see if they can source 5/16”. 8mm would likely work too.
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Catalog here on Delta PT fasteners
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legopnuematic said:
Thank you, I can find 1/4” or 6mm pretty easily. Your example on the right looks to be a “hilo” thread form.

These are 1/4, might be worth to contact them and see if they can source 5/16”. 8mm would likely work too.
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Click to expand...
Ya I saw those an thought about asking them too. The one on the right is from 88-98 trucks use a M8x1.25 thread. Worst case an M8 one could work for both generations I think.
 
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Depending on cost, I'd be interested in a set just in case. I bought a spare set of dually fenders as those can be hard to source.
 
PrairieDrifter

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Dually fenders are reproduced now.
 
TotalyHucked

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bluex said:
@TotalyHucked would this be something AMD might have interest in???
Click to expand...
Unfortunately no. We've had many, many conversations about dually fenders and hardware/brackets and I've gotten shut down every time. And I get it, from our standpoint, the amount of sales we'd need vs the tooling costs just don't make sense. And they don't want to do just part of it (say, just hardware) without doing the fenders and brackets and everything.
 
TotalyHucked

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PrairieDrifter said:
Dually fenders are reproduced now.
Click to expand...
Where? I haven't seen any squarebody dually fenders being re-popped. I've even talked to Mike at SloshTubz about it cuz I think there's enough of a need that he could do it.
 
PrairieDrifter

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TotalyHucked said:
Where? I haven't seen any squarebody dually fenders being re-popped. I've even talked to Mike at SloshTubz about it cuz I think there's enough of a need that he could do it.
Click to expand...
I did a google search a while ago and they popped up. Not sure where or quality.
 
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TotalyHucked said:
Where? I haven't seen any squarebody dually fenders being re-popped. I've even talked to Mike at SloshTubz about it cuz I think there's enough of a need that he could do it.
Click to expand...
Mike is on my list of people to offer this too as well. I'm still not sure if it'll be worth the hassle though.

I got a spare set of fenders for mine a few weeks ago. I was able to pull them myself an I got all the hardware too. So I have a full hardware set, even though they need cleaning up. Hate to be that way, but seems like there's not the demand I thought there would be.

The driving force on this for me was the red squarebody pictured. Most of the hardware on it wasn't salvageable an I'm not crazy about the hanger bolts being a good solution.
 
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