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FAQS

Welcome to our Frequently Asked Questions page. Here you will find answers to some of the questions you may have.

If you don't find an answer to your questions, please feel free to send us an email at info@jamcosuspension.com.

Please click on a question to view the answer.




Q: How do I measure the bolt pattern for my wheels?
A: It's easy, just follow these steps; 4-Lug = Measure center to center of two holes directly across from each other. 5 Lug = Measure from the center on one hole to the BACK of the third hole. 6 Lug = Measure center to center of two holes directly across from each other. 8 Lug = Measure center to center of two holes directly across from each other.
 

Q: How do you determin the RH and LH side of the car?
A: The RH side is the passenger side & the LH side is the drivers side.
 

Q: What is "Bump Steer"
A: Bump Steer is the term for the tendency of a wheel to steer as it moves upwards into jounce. It is typically measured in degrees per metre or degrees per foot. On modern cars the front of the tire moves outwards, as the suspension is raised, a process known as the front wheels "toeing out". This gives roll understeer. The rear suspension is usually set up to minimise bump steer, where possible. A typical value is two degrees per metre, or perhaps more, for the front wheels. Excessive bump steer increases tire wear and makes the vehicle more difficult to handle on rough roads.
 

Q: Why do you need all of my vehicle information?
A: We need your vehicle info to ensure you get what you ordered. With this info, we can double check your order and make sure all the parts you order are correct for your application.
 

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Jamco Parts
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Cypress, CA 90630
info@jamcosuspension.com
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