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Just lifted my new crewcab (Pic)

www.chromewheel.com

they sell kits and such for 22.5' alcoas.

if i go diesel then i will run 22's

the only drawback of your lift is this. you lost almost all weight carrying ability with the shackle flip.

i dont know if you plan on carrying a full 1.25 tons in the bed of that or not, but even trailer weight will make ya sit WAY low in the back.

im debating lifting my dually or not. if i go diesel (CTD and a 6 speed) then i will lift it. if not i will just throw on some taller tires and trim the front fenders along with new torsion bars and put them up at about themiddle of the adjustment field.
Grant
 
I checked out chromewheel and there is no way I am paying 900 bucks for 4 adapters. As far as losing weight carrying capacity with the shackle flip, please explain why this is true? Stock leaves with the shackle in compression instead of tension should not a make a difference at all and the people that actually have a shackle flip on a tow rig agree with me.
 
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As far as losing weight carrying capacity with the shackle flip, please explain why this is true? Stock leaves with the shackle in compression instead of tension should not a make a difference at all and the people that actually have a shackle flip on a tow rig agree with me.

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I am not an expert on this at all, but I know all the info around on shackle flips states that it is not ideal for towing. I think it has a lot to do with handling as well as weight capacity. There is a reason the designers and engineers did it that way, it wasn't just a whats easiest to do kind of thing. Somebody else know the engineer-speak for all this? /forums/images/graemlins/grin.gif
 
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As far as losing weight carrying capacity with the shackle flip, please explain why this is true? Stock leaves with the shackle in compression instead of tension should not a make a difference at all and the people that actually have a shackle flip on a tow rig agree with me.

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I am not an expert on this at all, but I know all the info around on shackle flips states that it is not ideal for towing. I think it has a lot to do with handling as well as weight capacity. There is a reason the designers and engineers did it that way, it wasn't just a whats easiest to do kind of thing. Somebody else know the engineer-speak for all this? /forums/images/graemlins/grin.gif

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bingo. it will still haul the weight so long as you beefed up the shackle hanger. it will just sag big time.

as for not paying 900 dollars for the adaptors that fully understandable. it was just a sugestion.

im not saying you were wrong in doing what you did. it looks good. im saying you might have problmes. well, not problems, but drawbacks. since most people that drive a dually(i drive mine 55 miles or more every day) dont have weight in the back of it then it will be fine. but when it is time to put weight in the back of it you will have issues. also like i said before, did you do anything to put the helper springs back into the correct location? if you have them, im not sure what years they started putting them in. if you didnt relocat them, or rather the stops for them, then you may as well have made a 3/4 tona truck into a dually. it will be the same effect when it comes time to put weight into the bed withoutt them.

belive me, im looking BIG into mods for my dually as i plan on keeping it for a very long time. and it is a workhorse when i need it. i plan on it being a backbone to an upcomming business. while im overseas it will be getting paid off, a new motor, a superchager, an over/under drive and a set of 19.5 or 22 inch wheels along with some 4.56 gears. air bags in the back and an air ride 5th wheel hitch to replace the gooseneck hich.

once i move to idaho i will be putting on a half flat bed half utility box bed, graphics all around and then start having to wash it on a regular basis as it will be "free" advertising. it has to be done right, and expected to reoutinely perform at 110% of its ability.

Grant
 
Shackle angle has an unbelievable effect on dynamic spring rate that most people don't recognize. They might be the same springs but they're going to feel much softer now.

We talked about this on AIM though, with 9 leaves or more, those springs are so stiff I doubt they will be significantely affected by this change.

For those with 3/4 ton rigs or 1/2 tons as tow rigs though, a shackle flip's change in, "felt" spring rate can be downright scary.

I know I sure as hell wouldn't carry anything heavy or tow with my K10, and it'd not be just due to the big tires or short wheelbase. My rear suspension is FAR too soft for towing.
 
My shackle is perfectly vertical, just like before, so explain how it changes anything. So far all I have heard is theories of what it will handle like and no real world experience. I think the main reason everyone thinks it is bad is because ORD has a disclaimer on the shackle flip saying it is not good for towing. I doubt this was from a problem someone had, rather it was probably just to cover Steve Watsons ass. Yes, I will be moving the top overload brackets to the correct location, however if you look at these, you would seriously have to overload the truck for these to even come into play, so I doubt this is the only thing that seperates a 3/4 leaf spring pack from a 1 ton pack.
 
When I went from blocks to a shackle flip, it was a big difference in ride quality. I believe in the stock style(tension), gravity it pushing the shackle to go straight up and down, placing the spring in a decently arched place. When you flip the shackle(compression), gravity want to bring the shackle back towards the rear of the truck, flattening the spring out, lowering the truck bed.
I think this makes sense, but I know it actually feels different because I've done it. But with such a stiff spring pack, I don't know if you will notice or not.
Blake
 
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no real world experience

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My experience with this issue has been this:

Before shackle flip I would pull a trailer with the K10 no problem (even when I had lift blocks.

My friends have done shackle flips on their rigs only to have serious wheel hop problems that weren't there before. Something is changing spring rate if your springs are wrapping up that hard, I would think, unless something else is causing all that axlewrap.

Like I said though, I have never done a shackle flip on a rig with a huge thick spring pack, but I'd imagine it wouldn't make much of a difference in the dynamic spring rate.

Many of us have made modification for no other reason than to change shackle angle, and the reason for this is to make a major change in the operation of our suspensions without a lot of $$ expended.

That said, I don't see a problem with a shackle flip on your towing rig, but if it was a 1/2 ton, or you removed leaves or something, I'd say that it could get downright scary coupled with the shackle flip.

I'm not going to sit here and trash the way someone chooses to build their truck, but there is no denying the change in "felt" spring rate that is caused by a shackle flip. For off road use, this is the main reason I like the shackle flip so much, but for towing, this brings costs/benefits into the equation that must be considered.

In your case it would appear that tradeoffs are minimal, and I'd run it. /forums/images/graemlins/thumb.gif
 
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I'm not going to sit here and trash the way someone chooses to build their truck,

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WHY STOP NOW?

/forums/images/graemlins/histerical.gif /forums/images/graemlins/histerical.gif /forums/images/graemlins/histerical.gif /forums/images/graemlins/histerical.gif

/forums/images/graemlins/thumb.gif
 
I think the issue is bigger than just theories and a$$ covering. A lot of people do shackle flips on their wheeling rigs because it is cheap and easy, and offers good ride for a 4x4. I think it is kind of a short cut to making lift as well, since you can do it yourself for free, like I did haha. Now with a big HD truck like yours, if you intend to carry very heavy loads and use the truck to its full extent, I really think you should find out the details on how the shackle flip will change things. It doesn't seem like an area to cut corners IMHO, and the burden of proof shouldn't be on us to prove it to you, its your truck and your responsibility to keep it safe.

Will you have problems with it, I don't know. I just think you should find someone who knows, like a suspension company or something and find out from an expert. Wouldn't you rather find out now rather than wait until your on a road trip or something? Just my 2 cents /forums/images/graemlins/thumb.gif
 
Well, lets see, the flip is made by ORD, perhaps they have or know of a tow vehicle with a shackle flip. Maybe Mr. Watson will chime in. Also, why would they make the flip for 1 tons if it was dangerous to tow with them, I mean how many people use a 1 ton just to put around town and do not use it for its intended purpose.
 
Just went to ORDs website and found this:

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Load carrying ability is also a common question. Basically, if you keep the factory overloads, you won’t have any trouble. We've designed the shackle angle to retain as much load carrying ability as possible with a lifted 4wd.
There is no more lateral lateral motion of the vehicle than with the stock tension shackle bushing setup. It may look as if the axle could move side to side easier, but the only thing that puts more leverage on the bushings is the additional ride height, which you also gain with blocks or lift springs.


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Sounds to me like I will be OK.
 
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I mean how many people use a 1 ton just to put around town and do not use it for its intended purpose.



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The majority of 1 ton owners never use their trucks at all let alone using it for it's intended purposes... /forums/images/graemlins/thumb.gif
 
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