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Old 12-16-2004, 03:07 PM
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Truck arms

So I want to do a truck arm suspension but I need some info.

Does anyone have the dimensions of the ones that are typically used for this? I know there is a short version and a long version but that's about it.

Thanks.

Wally

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Old 12-16-2004, 03:18 PM
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Don't understand the question.............are you talking about trailing arms for the rear end?
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Old 12-16-2004, 03:35 PM
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Yep. The ones used on the rear suspension of older chevy trucks with coil springs.

Wally
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Old 12-16-2004, 04:48 PM
 
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Nexttel cup and bush cars all have to use them. Its a lot of work for not much gain on a street car.What are you putting them under. Its a pretty hard thing to do on most unless your building a complete chassis or its and older car that allready has a similar setup.
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Old 12-16-2004, 10:33 PM
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You're right Phat. That's exactly where I've seen this suspension setup. I've spent a lot of time being a circle track guy.

It's going under a 65 LeMans and I've pretty well decided to back half it so I can basically choose any setup that I want.

I'm open to suggestions but I think the truck arm is a good, simple way to go that will accomplish everything I want the car to do. It will hook up pretty well and turn corners pretty well and it's very simple.

I figure that if it's good enough for a 750 hp, 190 mph Cup car, it'll probably work pretty good for me too. It's definitely better than the stock suspension which won'tt work anyway due to the serious amount of lowering that needs to be done.

Like I say though, I'm open to suggestions. What would your choice be and why? I'm interested in the pros / cons of different options.



Wally
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Old 12-17-2004, 08:25 AM
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Truck arms

well I dunno everything about everything but on the "truck arm" setups I have seen the forward pivot is located at the point directly under the front u-joint..I ran a Monza that had this and it worked well..

The lentgth of the arms goes accordingly..another option is the IMCA 3 bar..I have a drawing of one of those in my project journal..

Actually I like going with what the IMCA guys use on a street car as those things handle and hook up just fine..And the parts are availble and relatively inexpensive..

Choices choices eh!!!

OMT
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Old 12-17-2004, 11:06 AM
 
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This subject has come up before. Try a search.

Here is a link that someone posted in the past

http://projects10.freeservers.com/coiloverrear.html
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Old 12-17-2004, 04:49 PM
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Thanks evltwin. I have done a search and have seen that link before. Not really what I'm looking for. That's not really a truck arm setup in my opinion.

I'm looking for the Hotrods to Hell version. I've been on their website but can't see a measurement although it's about where 1MT was talking about.

1MT,

That makes intuitive sense I guess. That would probably work out pretty well.

I like the idea of the IMCA modified suspension too and I've been considering that as well. I'm very familiar with that setup. We raced that for a few years with great results. I considered a 2 link with a torque arm as well. I haven't ruled out the 3 link entirely. It's second choice right now. And it is a very cheap way to go which would be good.

I am curious how long I could make the top link without making the floor pan too ridiculous. That's sort of what's pushing me to the truck arms. It looks like the best compromise to either of the other two options.

The front of the car will get a complete IMCA Modified setup (Harris type).

I just picked up my T56 this afternoon so I guess I better mockup the drivetrain and see where I'm at.

Wally
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