{"id":23471,"date":"2025-12-16T20:47:10","date_gmt":"2025-12-16T11:47:10","guid":{"rendered":"https:\/\/testwww.tein.co.jp\/question\/"},"modified":"2025-12-16T20:47:10","modified_gmt":"2025-12-16T11:47:10","slug":"question","status":"publish","type":"page","link":"https:\/\/www2.tein.co.jp\/en\/question\/","title":{"rendered":"FAQ"},"content":{"rendered":"

FAQ<\/h1>\n
\n

Overhaul and Revalving<\/h2>\n
    \n
  1. For which shock absorbers is overhaul available?<\/a><\/li>\n
  2. When do I need overhaul?<\/a><\/li>\n
  3. What to put in my revalving order?<\/a><\/li>\n
  4. Can I have my shock absorbers’ stroke shortened?<\/a><\/li>\n
  5. Can my shock absorber be shortened?<\/a><\/li>\n
  6. How much does overhaul or revalving cost?<\/a><\/li>\n
  7. Why is my adjustment dial (click) stiff\/stuck?<\/a><\/li>\n
  8. Can I bring my car to TEIN for shock absorber overhaul?<\/a><\/li>\n
  9. How long does overhaul at TEIN take?<\/a><\/li>\n
  10. How can I get an overhaul\/revalving form, if I have lost my instruction manual?<\/a><\/li>\n
  11. What are my shock absorbers’ damping force characteristics?<\/a><\/li>\n
  12. Can I request overhaul directly at TEIN?<\/a><\/li>\n
  13. Do my shock absorbers need breaking in?<\/a><\/li>\n<\/ol><\/div>\n
    \n

    Unusual Noises<\/h2>\n
      \n
    1. I purchased a brand new TYPE FLEX DAMPER with pillow upper mount. It was the first time I installed a shock absorber by myself, but when I am driving, I hear a clattering noise. Did I buy a faulty product?<\/a><\/li>\n
    2. I purchased a brand new TYPE FLEX DAMPER with pillow upper mount. There were no problems installing the shock absorber, but I can hear clattering and tapping sounds.<\/a><\/li>\n
    3. I think aeration is occurring in my shock absorber and I hear a tapping sound. How do I release the air?<\/a><\/li>\n
    4. I bought a old used TYPE-H damper and after installing it, I can hear a discomforting noise.<\/a><\/li>\n
    5. I purchased a set of S.TECH springs and after installation, I can hear noises which sound like metal rubbing against each other. Is it something I should be worried about?<\/a><\/li>\n
    6. I installed my part a while ago, but recently I started hearing some clanging noises.<\/a><\/li>\n
    7. I installed the SUPER STREET DAMPER to my car, and when I drive over rough surfaces, I can hear squeaking noises from the rear. Is it a defect?<\/a><\/li>\n
    8. I installed BASIC WAGON to my car, but while I drive, I can hear squeaking and\/ or rattling noises. Was it not properly installed?<\/a><\/li>\n<\/ol><\/div>\n
      \n

      Damping Force Adjustment<\/h2>\n
        \n
      1. How do I adjust damping force?<\/a><\/li>\n
      2. My 16-level damper’s adjustment dial (click) turns more than 16 clicks.<\/a><\/li>\n
      3. Which damping force level do you recommend?<\/a><\/li>\n
      4. What damping force level is the factory setting?<\/a><\/li>\n
      5. Do EDFC Series’ 32-, 64- or 96-level mode broadens the damping range?<\/a><\/li>\n
      6. How can I get repair\/replacement for an adjustment dial (click)?<\/a><\/li>\n<\/ol><\/div>\n
        \n

        Vehicle Ride Height Adjustment \/ Settings<\/h2>\n
          \n
        1. It is my first time adjusting the ride height. What ride height position should I set my car at?<\/a><\/li>\n
        2. If I mainly want to drive at the circuit, how should I set the spring rate and ride height?<\/a><\/li>\n
        3. I wanted to lower the ride height by 30mm so I lowered the lower seat by 30mm. But the actual ride height dropped by 45mm. Why?<\/a><\/li>\n
        4. Why is the front spring rate for the Mark II and Supra set so high, between 12k-18k?<\/a><\/li>\n
        5. I purchased the SUPER STREET DAMPER and I intend to go to the circuit, so I increased the spring rate by 4k. I lowered the seat to the lowest position, but the ride height doesn’t drop very much. Why?<\/a><\/li>\n
        6. I lowered my car very low, but the ride comfort is bad. What can I do to improve the comfort level?<\/a><\/li>\n
        7. I want to secure more stroke by cutting the bump rubber. How much should I cut?<\/a><\/li>\n
        8. I often hear the ride comfort worsens as you lower the ride height, but if I raise the ride height, does it affect the ride comfort?<\/a><\/li>\n
        9. I have HIGH.TECH springs on my car, but the ride height is not as low as I thought. Is the product defective?<\/a><\/li>\n
        10. When looking at springs, e.g. S.TECH, spring rates are written like the following (2.9∼5.5k). Does this mean that the spring rate can be chosen within the range?<\/a><\/li>\n<\/ol><\/div>\n
          \n

          Miscellaneous Questions<\/h2>\n
            \n
          1. What types of warranties are available?<\/a><\/li>\n
          2. I don’t have my warranty certificate. Am I still covered?<\/a><\/li>\n
          3. What are the recommended browsers to use this site?<\/a><\/li>\n<\/ol><\/div>\n","protected":false},"excerpt":{"rendered":"

            FAQ Overhaul and Revalving For which shock absorbers is overhaul available? When do I need overhaul? What to put in my revalving order? Can I have my shock absorbers’ stroke shortened? Can my shock absorber be shortened? How much does overhaul or revalving cost? Why is my adjustment dial (click) stiff\/stuck? Can I bring my car to TEIN for shock absorber overhaul? How long does overhaul at TEIN take? How can I get an overhaul\/revalving form, if I have lost my instruction manual? What are my shock absorbers’ damping force characteristics? Can I request overhaul directly at TEIN? Do my shock absorbers need breaking in? Unusual Noises I purchased a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":110,"comment_status":"closed","ping_status":"closed","template":"page-import.php","meta":{"footnotes":""},"class_list":["post-23471","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"\nFAQ - TEIN, INC.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www2.tein.co.jp\/question\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"FAQ - TEIN, INC.\" \/>\n<meta property=\"og:description\" content=\"FAQ Overhaul and Revalving For which shock absorbers is overhaul available? When do I need overhaul? What to put in my revalving order? Can I have my shock absorbers’ stroke shortened? Can my shock absorber be shortened? How much does overhaul or revalving cost? Why is my adjustment dial (click) stiff\/stuck? Can I bring my car to TEIN for shock absorber overhaul? How long does overhaul at TEIN take? How can I get an overhaul\/revalving form, if I have lost my instruction manual? What are my shock absorbers’ damping force characteristics? Can I request overhaul directly at TEIN? Do my shock absorbers need breaking in? Unusual Noises I purchased a […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www2.tein.co.jp\/question\/\" \/>\n<meta property=\"og:site_name\" content=\"TEIN, INC.\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www2.tein.co.jp\/question\/\",\"url\":\"https:\/\/www2.tein.co.jp\/question\/\",\"name\":\"FAQ - TEIN, INC.\",\"isPartOf\":{\"@id\":\"https:\/\/www2.tein.co.jp\/en\/#website\"},\"datePublished\":\"2025-12-16T11:47:10+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www2.tein.co.jp\/question\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www2.tein.co.jp\/question\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www2.tein.co.jp\/question\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"FAQ\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www2.tein.co.jp\/en\/#website\",\"url\":\"https:\/\/www2.tein.co.jp\/en\/\",\"name\":\"TEIN, INC.\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www2.tein.co.jp\/en\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"FAQ - TEIN, INC.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www2.tein.co.jp\/question\/","og_locale":"en_US","og_type":"article","og_title":"FAQ - TEIN, INC.","og_description":"FAQ Overhaul and Revalving For which shock absorbers is overhaul available? When do I need overhaul? What to put in my revalving order? Can I have my shock absorbers’ stroke shortened? Can my shock absorber be shortened? How much does overhaul or revalving cost? Why is my adjustment dial (click) stiff\/stuck? Can I bring my car to TEIN for shock absorber overhaul? How long does overhaul at TEIN take? How can I get an overhaul\/revalving form, if I have lost my instruction manual? What are my shock absorbers’ damping force characteristics? Can I request overhaul directly at TEIN? Do my shock absorbers need breaking in? 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