PLAN B

[76zimmer]

Oh man....it was my build weekend April 2011....Kert, Heath, Eric, Jesse, were all in on the theory behind the mounting angle of the lower bar and the ideal triangulation of Kerts wraptor bar.
Not real sure what final figures where used but Kert crawled under the truck and welded that bar in upside down, and it’s worked flawlessly ever since!
Perhaps @blazinzuk, @cybrfire, @folkenheath , or @jekquistk5 might have more to add

 

[blazinzuk]

Oh man....it was my build weekend April 2011....Kert, Heath, Eric, Jesse, were all in on the theory behind the mounting angle of the lower bar and the ideal triangulation of Kerts wraptor bar.
Not real sure what final figures where used but Kert crawled under the truck and welded that bar in upside down, and it’s worked flawlessly ever since!
Perhaps @blazinzuk, @cybrfire, @folkenheath , or @jekquistk5 might have more to add

It had to do with the brace between upper and lower and the angle of the lower to the upper etc. It was pretty funny thing overall

 

[the_blaze]

I'll likely be asking for pictures from people.
Ive also seen the front shackel mounted above and below the crossmember... does it matter?

 

[blazinzuk]

The best way is to mount it is up. Your fighting wrap that is trying to point the pinion up. So if your trying to pull up on something the chance of the shackle inverting under odd conditions is eliminated.

 

[the_blaze]

Seems reasonable

 

[72gmck5]

Let’s attach it to your trailer hitch and run it under your gas tank. It’ll be at a good angle to protect your gas tank

 

[the_blaze]

Let’s attach it to your trailer hitch and run it under your gas tank. It’ll be at a good angle to protect your gas tank

I like where this is headed....

 

[the_blaze]

Rigs of ck5 calendars are available now if any of you missed it.
https://ck5.com/forums/threads/2019-rigs-of-ck5-calendars-are-now-on-sale.335512/

 

[cybrfire]

I remember the "debate" well. I love a good debate.

 

[the_blaze]

I remember the "debate" well. I love a good debate.

Seeing what i have what should i do? @cybrfire

 

[72gmck5]

Put it on the front axle

 

[the_blaze]

On this setup which bar would mount closest to the axle (bottom side)? I know the bracket sticks up above the axle but im not sure if it matters which bar goes where.

 

[folkenheath]

Yes mount the bottom one closer to the axle for more ground clearance. Then add a brace between the two bars close to the axle end.

If the two mounting points were at a point where each bar was perpendicular to a line drawn from its mounting point to the axle centerline , you wouldn't need a brace, but that frequently doesn't fit and can reduce ground clearance. Most brackets, (including that one) don't have the holes approaching 180 degrees apart to create that situation either, for the reasons stated above.

 

[the_blaze]

Yes mount the bottom one closer to the axle for more ground clearance. Then add a brace between the two bars close to the axle end.

If the two mounting points were at a point where each bar was perpendicular to a line drawn from its mounting point to the axle centerline , you wouldn't need a brace, but that frequently doesn't fit and can reduce ground clearance. Most brackets, (including that one) don't have the holes approaching 180 degrees apart to create that situation either, for the reasons stated above.

not really what the question was tho,
there is a longer bar and a shorter bar. one is the main bar and the other one is welded to it. i am trying to figure out which one should be the bottom bar.

 

[HankScorpio]

I was just looking at the kits from RuffStuff and they show the long bar on the bottom, short on top. Doubt it matters on yours as they are almost the same length.

 

[folkenheath]

not really what the question was tho,
there is a longer bar and a shorter bar. one is the main bar and the other one is welded to it. i am trying to figure out which one should be the bottom bar.

Ah, I see, sorry I missed that.

Since you are bracing them together at the other end, it probably doesn't matter as it will be strong enough either way.

With that said, if you analyze the forces the top bar is under tension and the bottom one under compression under the most loaded condition. So if the one piece longer bar is under tension and the other one pushing back on it the forces are opposing each other, it would theoretically be stronger and less likely to buckle. If the longer bar is under compression and you pull on the side of it, it will be more likely to buckle, so based on that I would put the longest bar on the top because it also puts the shorter bar under compression, which is going to be stronger if they are both the same tube diameter and wall thickness.

It doesn't appear that catching on an obstacle is a factor if you put the shackle up, but that is also something to keep in mind.

 

[blazinzuk]

Long bar on top. For reasons Heath said, and it looks better.

I don't think overall it would make one lick of difference. But I'd put long on top

 

[the_blaze]

Dang. Looks like the crossmember is a little twisted so i may have to make a new one... then again its likely my truck is a little twisted.
Looks like i wont be installing the anti wrap today.

On another note this truck is doing a couple weird things.

1. The fuel pump sits and runs for like a minute each time i shut it off. I really dont remember it doing that before...

2 i fire it up and it surges and runs like a cold carb until i rev it up and it smooths out. Then it seems to run fine. Any ideas?

 

[the_blaze]

Mocked it up. Seems good to me.
Yes I'll add a middle brace.
This isn't a great pic but i got the front shackel basically straight up and down

 

[kgblazerfive]

That fuel filter is in a great spot......