Installation Tips and FAQ
The following Installation Tips and FAQ should help you to install and use your JDCarbon parts.
Installation Tips
Don't use pliers on JDCarbon Carbon Fiber Pins.
When installing or removing your JDCarbon Pins, don't use pliers. You may crush the pin.
JDCarbon pins may be tight when inserting into the a-arms.
Try to work the pin in by hand, by wiggling the a-arm while by pushing the end of the pin with something flat and hard. Don't pound on the pin, just press firmly.
Carbon-fiber pins may not fit in tight aluminum after-market parts.
We've done everything possible to make our pins fit perfectly in your RC, but in some cases due to the nature of pultruded carbon fiber, they may not fit without some modifications. Simply put, the pins are not 100% perfectly round, and in some cases depending on the tolerances of hole in your aluminum parts, they may not fit. This is very rare, we've only heard of this issue with Hyper 8 aftermarket aluminum rear uprights. You have a few options, you could ream the hole a little, sand the pins, or use plastic uprights. As previously mentioned, this is very rare.
Installing JDCarbon turnbuckles
Simply remove your old turnbuckles, and replace with the new JDCarbon turnbuckles.
Adjusting your JDCarbon Turnbuckles
No need for a wrench, use your hand. Don't use pliers on them, this will damage the aluminum exterior tube and may crush the inner carbon fiber tube, reducing strength. Most people will be able to adjust them by hand, but if you're having a hard time, grab a piece of clean fuel tube and wrap it around the turnbuckle a couple times. This will give you a grippy silcone handle. This is the same idea as using a kitchen towel on the cap of a tight bottle. Obviously, unwrap the tube before driving.
FAQ
Why use carbon fiber a-arm pins?
A-arm pins must be strong, but do they have to be so heavy? We wanted to find an alternative to heavy steel, and carbon fiber works great as a replacement. It's stronger and just 1/7th the weight of steel - the pins are lighter than aluminum or even titanium! Also, carbon fiber doesn't interfere with your receiver and cause glitching like metallic pins do.
Are carbon fiber pins really strong enough?
We get this question all the time, and the answer is yes. Here are some stats: Tensile Strength - 200000 psi, Shear Strenght 9500 psi, Flexural Strength 230000 psi. If you're vehicle experiences more than 9500 psi you've got bigger problems than breaking a pin! Your vehicle will tear in half before the pins break.
To help illustrate how tough the pins are, we filmed a quick video of them being beat with an 8lb sledge hammer.
Who cares how many psi carbon fiber pins shear at - show me some real world examples!
Check out the gallery - There's a picture of the owner John Delisle hanging on a punching bag suspended by just a carbon fiber pin.
So what if I break one of your products?
We offer a 1 year warranty, no questions asked. Just contact us and we'll work with you to arrange a replacement part. We'd appreciate some pictures of the broken part to help us to understand what failed and why so we can improve our products.
I've purchased JDCarbon Carbon Fiber A-Arm Pins and find they're tight in my a-arms. What can I do to loosen it up?
Our pins are usually a perfect fit, they're exactly the same diameter and length as stock. Even still we've found some combinations of a-arms, particularly aftermarket a-arms, will seem tighter than the same stock a-arm. We suggest either sanding the pin very gently with fine sand paper or just running it for a while tight and let it break-in. This is really rare since our products are exact replacements. If you can't get it to work contact us and we can work something out for a custom set of pins.
The pins feel rough, what's up with that?
No need to worry, this is normal. They will polish up in no time, and be a silky smooth as any metal pins.
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