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Old 07-13-2019, 04:09 PM   #1
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Is it ok to install the Cusco diff collars without the rear inserts?

They're sold separately but I think that, because the front collars create a hard mount point, it's asking too much of that cantilevered load to support all of the torsion. I still see significant vertical deflection at the left rear isolator.


Anyone running like this? How long?
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Old 07-15-2019, 04:37 PM   #2
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Nobody? Am I that special?
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Old 07-15-2019, 04:42 PM   #3
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I ran it that way for 5-6 months, no issues. I had the Whiteline inserts though, don't know if that makes a difference
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Old 07-15-2019, 09:11 PM   #4
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I ran it that way for 5-6 months, no issues. I had the Whiteline inserts though, don't know if that makes a difference
IIRC the Whiteline inserts are polyurethane, yes?

The steel Cusco collars take up all the available slack. There's a hard plastic layer but it doesn't actually have any give. They're literally hard mount points now. Feels great but I'm a little worried about the cyclical load on those screws.

I'll watch it carefully the next few weeks.
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Old 07-15-2019, 09:49 PM   #5
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IIRC the Whiteline inserts are polyurethane, yes?

The steel Cusco collars take up all the available slack. There's a hard plastic layer but it doesn't actually have any give. They're literally hard mount points now. Feels great but I'm a little worried about the cyclical load on those screws.

I'll watch it carefully the next few weeks.
Eeek hows the NVH? Cause I have the polyurethane diff inserts but Im quite alright with the extra noise and clatter so if I can reduce the slop even more, Im willing to go even stiffer
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Old 07-16-2019, 12:43 AM   #6
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Eeek hows the NVH? Cause I have the polyurethane diff inserts but Im quite alright with the extra noise and clatter so if I can reduce the slop even more, Im willing to go even stiffer
There's a bright resonance right around 120 Km/hr. I'm ok with it today but I need to do some highway cruising before I commit. On the flip side, ten minutes on the Rhino ramps and it's back to stock.
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