Ironman Shackle Question

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TallPineCruiser

TallPineCruiser

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I just installed Ironmans 2" constant load last week. Anyone's rear shackles this close on the drivers side hanger? First picture is the passenger second is the driver.




IMG 2181






IMG 2180 1
 
Dallas Cruiser

Dallas Cruiser

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How much weight is in your rig? With more weight it will get further away.
 
ff347

ff347

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Is that after you have driven it? Mine (Ironman)were at odd angles until I drove it and let it sort of "settle " .
 
OSS

OSS

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That cross bar prevents inverting. That's what it's there for. You don't want the shackle side plate swinging too far back and locking the shackle in the backwards position (inverting). Right now that shackle is straight up and down which isn't ideal. Drive it around with a lot of weight in the truck and hit some good bumps to relax the suspension a bit
 
TallPineCruiser

TallPineCruiser

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Hartsville, SC
Is that after you have driven it? Mine (Ironman)were at odd angles until I drove it and let it sort of "settle " .
Yeah did a 200 mile round trip with some wheeling loaded down and that's after I unloaded. Probably just need to keep driving it loaded down.
 
TallPineCruiser

TallPineCruiser

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May 15, 2019
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Hartsville, SC
That cross bar prevents inverting. That's what it's there for. You don't want the shackle side plate swinging too far back and locking the shackle in the backwards position (inverting). Right now that shackle is straight up and down which isn't ideal. Drive it around with a lot of weight in the truck and hit some good bumps to relax the suspension a bit
So your saying my rear passenger side (first picture) is in danger of inverting? I was thinking it set about right and was my worried about the driver (second picture) Might just be the ironman lift. Its got some significant amount of cruiser lean.


IMG 2182
 
OSS

OSS

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Your shackle angles look normal for heavy duty springs on an unloaded vehicle - which makes for a harsher ride. It can't really be prevented because there's a trade off between cushy ride and load carrying capacity. When two springs on the same axle cause the vehicle to lean and have different shackle angles, it's because one of the springs is stiffer and arched tighter than the other — they're not matched pairs.
It's a common problem it seems with aftermarket springs. OME springs do it too.
A spring shop told me to put the stiffer, higher spring on the driver's side, since that side will always have more weight (when driving solo).
 

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