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Old 05-11-2013, 07:33 PM   #1
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Quigley rear suspension questions

I have an 08 SMB with 4x4 done by Quigley. It appears the rear is stock leaf springs on 4" blocks plus Helwig helpers.

In the last few months I've started reconfiguring the van and removed a few hundred pounds from the rear behind the axle (cabinets, spare, etc). Now when starting from full stop it appears that I'm getting a little axle wrap or spring movement that I can feel in the drivetrain. Could this be caused by the helper springs being too "tight" and not allowing the full spring to bear the load?

The reason I ask is that the helpers are turned all the way up, no more threads for adjustments on the ubolts, and the regular springs are not tight together at rest. The axle appears to shift (rock backwards) slightly to the rear when starting, causing the "jarring" in the driveline. It's not something you would notice as a passenger, but I'm sure it wasn't there in the beginning, and may not be evident when loaded for camping either.

My first option is to dial back the helpers and test, just thought I'd ask for input since you guys have been doing SMBs a lot longer than I have. Thanks.
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Old 05-11-2013, 10:18 PM   #2
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Re: Quigley rear suspension questions

Yeah, ditch the helpers. They are certainly contributing. A 4" block does your van no favors either. I would recommend dropping to a 2" block and adding a leaf to your main spring pack. You'll get better stability all around this way.
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Old 05-12-2013, 08:12 AM   #3
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Re: Quigley rear suspension questions

Quote:
Originally Posted by carringb
Yeah, ditch the helpers. They are certainly contributing. A 4" block does your van no favors either. I would recommend dropping to a 2" block and adding a leaf to your main spring pack. You'll get better stability all around this way.
...or getting Deaver springs and ditching the blocks.

My 02 Quigley does not have helpers. Just 4" blocks and stock leaves.
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Old 05-14-2013, 07:48 PM   #4
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Re: Quigley rear suspension questions

Thanks guys. Also contacted Quigley and Tiger sent me a lot of info as well, also offered to send me the original build sheet if I provided the VIN. That will be helpful just knowing how it was initially setup. I did loosen the helpers about an inch on the rear ubolt bracket on each side and it seems to have fixed the binding issue.
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Old 05-14-2013, 08:31 PM   #5
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Re: Quigley rear suspension questions

Quote:
Originally Posted by scottman
Thanks guys. Also contacted Quigley and Tiger sent me a lot of info as well, also offered to send me the original build sheet if I provided the VIN. That will be helpful just knowing how it was initially setup. I did loosen the helpers about an inch on the rear ubolt bracket on each side and it seems to have fixed the binding issue.
Tiger is awesome!!
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