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Thread: Suspension find and it ain't good

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Old 10-21-2004, 03:25 PM   #1
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Default Suspension find and it ain't good

So since I've been out of work I've been thinking about different ways to handle the TXT canti setup. So I flipped the cantilevers around. Now the shock mounts to the long arm and the canti link mounts to the short arm of the cantilever. It made the suspension much stiffer. It also took almost all my articulation away. I don't recommend it.
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Old 10-21-2004, 03:39 PM   #2
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Default Re: Suspension find and it ain't good

Here's my find:

Bored, I removed my springs, so it's all droop travel.
Well, it's actually working better than my WAY too stiff set-up.
And for some reason ground clearance hasn't been a problem.
It hangs on to sideways inclines much nicer too.

But, I don't recommend it.
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Old 10-21-2004, 04:01 PM   #3
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Default Re: Suspension find and it ain't good

I wached some of the mudcow vids the other day and it appears that he has a canti setup and no torque twist. is it because it's got clod axles? I'm guessing that's the reason.
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Old 10-21-2004, 04:32 PM   #4
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Default Re: Suspension find and it ain't good

Yes it would be because of the clod axles. Clods are uneffected by drive shaft torque (because no drive shaft).
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Old 10-21-2004, 08:48 PM   #5
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Default Re: Suspension find and it ain't good

it kinda dawned on me while I was typing the ?
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Old 10-22-2004, 10:43 AM   #6
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Default Re: Suspension find and it ain't good

So last night I tore the truck down again and started messing with the front shocks again. I drilled a hole in the long arm of the cantilever to balance out the leverage. That didn't work. the shocks hit the arm at not quite full compression. So ditched the canti's, going to how my rear shocks are mounted but my tube bumper is in the way. So after all that I resorted back to the canti's in front. but i did put the lathe motor back in and changed my GD600 to 3.8:1. it should crawl now. 215:1 WITH A LATHE MOTOR! My 27t motor was making noises, but out of the truck its fine i don't get it.
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Old 10-22-2004, 11:33 AM   #7
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Default Re: Suspension find and it ain't good

The cantilevers create a softer effective spring rate.

Say you have a 6lb/in spring on the TXT. If the cantilever has a 2:1 ratio (you'll have to measure the center-to-center distances of the pivot to shock mount on the canti and the pivot to the canti pushrod mount on the canti to get this ratio), you're left with basically a 3lb/in effective spring rate.

If you flip them, as you said, you double the rate...which would give you an effective spring rate of 12lb/in.
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Old 10-22-2004, 01:18 PM   #8
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Default Re: Suspension find and it ain't good

Quote:
Originally Posted by JasonInAugusta

If you flip them, as you said, you double the rate...which would give you an effective spring rate of 12lb/in.
Which might be good in the right rear?

I went back to the canti set-up, but mounted them on the outside of the frame.
Definately noticeable difference. Less twist, little stiffer I believe also.
I think I'll try flipping the right rear to the stiffer set-up.
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Old 10-22-2004, 03:21 PM   #9
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Default Re: Suspension find and it ain't good

It also does somewhat funky things with travel, as you've noticed.

Let's go back to that 2:1 ratio on the cantilever.

With the canti mounted the conventional way, the axle will travel twice as much as the spring compresses.

To get rid of the compression on the rear when you get on it, just play with shock oil and different rate springs.
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