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Thread: 5 link front end in full chassis scaler

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Old 01-03-2009, 10:26 PM   #1
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Default 5 link front end in full chassis scaler

Has someone built a scaler using a 5 link front with coilovers on a full chassis build. Just getting a few ideas on how to mount the panhard rod.
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Old 01-03-2009, 11:09 PM   #2
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maybe im missing something, but if your running a good 4 link you dont need the panhard bar. if you only run a 2 link setup then yes you need the panhard bar. when mounting the panhard just make sure the angle is the same as your steering link (if your running the servo on the chassis that is).
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Old 01-03-2009, 11:19 PM   #3
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Quote:
Originally Posted by rhhmaxx View Post
maybe im missing something, but if your running a good 4 link you dont need the panhard bar. if you only run a 2 link setup then yes you need the panhard bar. when mounting the panhard just make sure the angle is the same as your steering link (if your running the servo on the chassis that is).
A 4-link only works by itself when they are triangulated. My 1:1 TJ is a link suspension, but still needs the trackbar(pan hard) to keep the axle centered. If the control arms were triangulated, there would be no need for the track bar... BUT! If you have a frame mounted steering servo, a trackbar(pan hard) will also help with axle steer as the servo would want to push the axle when steering.
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Old 01-03-2009, 11:27 PM   #4
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The panhard setup has been done before. Here's a WK with a 3 link/panhard setup
Cliff the wheely king lives!!

rhhmaxx, if you build a truck with a 4 link that's not triangulated, you'll still need a panhard to keep the axle centered. Comp rigs and most scalers can get away with a triangulated 4 link or 3 link, but it takes up too much room for most 1:1's. a 3 link or 4 link with a panhard bar really frees up a lot of space. Honestly, every single coil spring/solid axle front suspension I've ever seen on a production 1:1 (be it 4 link or radius arm) had a panhard bar. The few triangulated 4 links I can think of exist on the rear of rear drive cars and I remember hearing somewhere that at least one of them would benefit from a panhard bar.

These little trucks seem to do OK with a 3 link panhard bar setup. If I was building a 1:1 I'd go 4 link, but it really doesn't seem necessary with the scalers. Just remember, if you run a triangulated 4 link and a panhard bar the suspension will bind badly (the rear drive cars I mentioned can get away with it because of rubber bushings with some give at all the link ends and limited travel. a scaler with rigid rod ends and lots of travel won't get away with it.) Pick one or the other. Also, if you use a frame mounted servo, try to make the drag link and panhard bar as close to the same length as possible, and also as close to the same angle as possible. That way the axle will travel through the same arc as the drag link, helping to limit the bump steer

Last edited by chrisjlittle; 01-03-2009 at 11:34 PM.
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Old 01-06-2009, 03:38 AM   #5
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I'm aware of how the 4 links are setup, but i'm building a replica of my FJ40 which i built the 5 link in the front end using a panhard rod. All i wanted to see was if someone had already done this in a scale build.
Im using AX10 diffs and the 4 control arms are easy enough to work out, just the panhard rod mount on the diff im getting ideas how to build that so everything fits in with the steering servo arms as well.
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Old 01-06-2009, 05:37 AM   #6
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steering servo on frame with panhard rod
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Old 01-07-2009, 04:00 AM   #7
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Thanks for that. Im still deciding wether to chassis mount the steer servo or diff mount. Chassis mount would look more scale though.
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Old 01-08-2009, 06:38 AM   #8
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Here's another example of a parallel 4-link w/panhard
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