{"id":6379,"date":"2026-05-30T21:52:29","date_gmt":"2026-05-30T21:52:29","guid":{"rendered":"http:\/\/australianholden.com\/?page_id=6379"},"modified":"2026-05-30T21:52:32","modified_gmt":"2026-05-30T21:52:32","slug":"hd-holden-suspension-steering","status":"publish","type":"page","link":"https:\/\/australianholden.com\/index.php\/home\/h-series\/hd-holden\/hd-holden-suspension-steering\/","title":{"rendered":"HD Holden Suspension &amp; Steering"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/australianholden.com\/index.php\/australian-holden\/h-series\/hd-holden\/\" type=\"page\" id=\"25\">HD Holden<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Previous: EH Holden Suspension and Steering<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Next: HR Holden Suspension and Steering<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The HD Holden (1965\u20131966) often gets overshadowed by what came before and after it, but underneath, it represents a meaningful step forward in Holden\u2019s mid-60s suspension tuning philosophy. It sits between the earlier EH-era simplicity and the more refined HR update, carrying forward the same basic layout but with subtle improvements in ride quality, steering feel, and chassis control.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This was still very much a car designed for Australian conditions \u2014 rough roads, long distances, and heavy use \u2014 but by the HD era, Holden engineers were clearly paying more attention to refinement. The result is a familiar driving experience, but with a slightly more composed edge compared to earlier models.<\/p>\n\n\n<div id=\"fu_ebay_0\"><!-- Presentation: cols = 4, rows = 2, slideshow = Manual, slides = 3, slideId = 0 --><div class=\"fu_ebay_results_container \">\n<h5 class=\"fu_ebay_results_title\" style=\"display: block !important;\">\n<a name=\"fu_slidetop_0\"><\/a><a href=\"https:\/\/www.ebay.com.au\/?mkcid=1&#038;mkrid=705-53470-19255-0&#038;siteid=15&#038;campid=5339152561&#038;customid=5339151688&#038;toolid=10049&#038;mkevt=1\" class=\"fu_ebay\" style=\"display:inline !important;\" rel=\"nofollow\" target=\"_blank\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/australianholden.com\/wp-content\/plugins\/fast-ebay-listings\/US\/Right_Now_108x45.gif?resize=108%2C45&#038;ssl=1\" style=\"border:0;display:block !important;\" width=\"108\" height=\"45\" alt=\"Right Now on eBay\"\/><\/a>&nbsp;HD Holden<\/h5>\nLoading&#8230;<\/div>\n<\/div>\n<script>\n<!--\nvar content_fu_ebay_0 = null;\nvar waitForDepends_fu_ebay_0 = setInterval(function () {\n  if (typeof jQuery !== \"undefined\") {\n  if (window.fu_is_bot_useragent !== undefined) {\n    clearInterval(waitForDepends_fu_ebay_0);\n    if (typeof jQuery.ajax == \"undefined\") {\n      console.log(\"Fast eBay Listings: jQuery.ajax missing. Are you using jQuery.Slim that doesn't include ajax? \");\n      return;\n    }\n    if (fu_is_bot_useragent) return;\n    content_fu_ebay_0 = jQuery(\"#fu_ebay_0\");\n    jQuery(document).ready(jQuery.ajax({\n      type : \"post\",\n      url : \"https:\/\/australianholden.com\/wp-admin\/admin-ajax.php\",\n      data : {\n        action : \"fu_ebay_load_search\",\nfuDisableAPICache : 0,\nfuTraceLogging : 0,\nebay_country : \"AU\",\nfu_ebay_customId : \"\",\nfu_ebay_widget : 0,\nfu_ebay_picwidth : 225,\nfu_ebay_arrangement : 0,\nfu_ebay_title : \"HD Holden\",\nfu_ebay_query : \"HD Holden Steering\",\nfu_ebay_searchInDesc : 0,\nfu_ebay_searchLocation : \"Internationally\",\nfu_ebay_pickupPostcode : \"\",\nfu_ebay_pickupRadius : 0,\nfu_ebay_sort : \"BestMatch\",\nfu_ebay_categoryIds : \"6030\",\nfu_ebay_sellers : \"\",\nfu_ebay_sellerType : \"\",\nfu_ebay_buyingOptions : \"\",\nfu_ebay_conditionOptions : \"\",\nfu_ebay_minPrice : 0,\nfu_ebay_maxPrice : 0,\nfu_ebay_minBids : 0,\nfu_ebay_maxBids : 0,\nfu_cols : 4,\nfu_rows : 2,\nfu_slideshow : \"Manual\",\nfu_slides : 3,\nfu_slideId : 0,\n\n      },\n      success : function( response ) {\n        content_fu_ebay_0.html( response );\n      },\n      error: function(e) {\n        console.log(\"Fast eBay Listings: deferred loading error: \" + e);\n      }\n    }));\n  }}\n}, 10);\n\/\/-->\n<\/script>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>HD Suspension Setup<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The HD continues with Holden\u2019s proven full-size layout: independent front suspension and a live rear axle. Simple, durable, and easy to maintain \u2014 exactly what buyers expected at the time.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Front Suspension<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Independent unequal-length control arm front suspension<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Coil springs mounted to upper control arm geometry<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Hydraulic shock absorbers<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Front stabiliser (sway) bar<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Steering box mounted to front crossmember<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The HD front end is tuned heavily toward comfort, but with slightly improved control over secondary movement compared to EH models.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The biggest improvement comes from damping calibration. Earlier cars tended to feel a little soft and slow to settle after bumps, while the HD introduces a more controlled rebound cycle. It still rides softly, but it doesn\u2019t feel quite as floaty over uneven surfaces.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Rear Suspension<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Live rear axle with semi-elliptic leaf springs<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Hydraulic shock absorbers mounted to axle<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Heavy-duty differential housing<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Optional rear sway bar depending on variant<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The rear suspension remains straightforward and rugged. Leaf springs provide load-carrying ability and durability, but also introduce some axle movement under cornering load.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">HD refinement work improves rear damping slightly, helping reduce oscillation over longer undulations and improving stability on open roads.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Steering System<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The HD Holden uses a recirculating ball steering system, consistent with other Holden models of the era.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Power Steering System (where fitted)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Recirculating ball steering box<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Hydraulic power assist (optional equipment)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Pitman arm and idler arm linkage system<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Drag link steering geometry<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Engine-driven power steering pump<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Steering is light and easy at low speeds, particularly with power assist. At higher speeds, it remains stable but not especially precise.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The inherent design includes some free play due to the multi-link system, meaning steering response is slower than modern rack-and-pinion setups. However, this was considered normal for the class at the time.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Suspension Changes From EH Holden<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The HD is best understood as a refinement rather than a redesign.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Key improvements included:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; revised damper valving for improved rebound control<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; slightly improved spring calibration for ride balance<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; upgraded bush compounds for reduced compliance movement<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; improved straight-line stability at highway speeds<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; reduced front-end bounce after larger bumps<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; better durability under sustained load conditions<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">These changes give the HD a slightly more confident feel, particularly on longer highway runs where stability matters more than outright softness.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Common HD Suspension Issues<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Like most classics of this era, time is the biggest factor affecting suspension performance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Front Control Arm Bush Wear<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Rubber deterioration is extremely common.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Symptoms:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; wandering steering at speed<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; knocking over bumps or braking<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; uneven tyre wear<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; vague steering response<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ball Joint Wear<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Front suspension joints carry significant load and wear over time.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Symptoms:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; clunking over bumps<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; looseness in steering feel<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; instability under braking<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tie Rod End Wear<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Essential for steering accuracy and alignment.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Symptoms:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; excessive steering play<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; uneven tyre wear<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; poor straight-line tracking<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Steering Linkage Wear<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Multiple joints in the steering system can develop play.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Symptoms:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; slack steering feel<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; wandering at highway speeds<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; inconsistent steering response<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Leaf Spring Fatigue<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Rear leaf packs naturally lose rate over decades.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Symptoms:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; rear sagging<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; reduced ride height<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; harsh bottoming under load<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; instability when carrying passengers or cargo<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>HD Suspension &amp; Steering Components (Service Overview)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Exact OEM part numbers vary depending on body style (sedan, wagon, ute), engine configuration (inline-six variants), and trim level (Standard, Special, Premier derivatives). However, the HD platform generally includes the following service components:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Front Steering Components<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Steering box assembly (recirculating ball type)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Pitman arm<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Idler arm<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Drag link assembly<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Inner and outer tie rod ends<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Steering column coupling components<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Power steering pump and hydraulic lines (if fitted)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Front Suspension Components<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Upper and lower control arms<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Front coil springs (rate-specific per engine and trim)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Front shock absorbers<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Front sway bar and links<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Ball joints (upper and lower depending on configuration)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Control arm bushes<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Rear Suspension Components<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Multi-leaf rear spring packs<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Rear shock absorbers<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Rear axle housing<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; U-bolts and spring mounts<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Optional rear sway bar (model dependent)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Steering System Ancillaries<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Hydraulic steering pump (if equipped)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Reservoir and return lines<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Steering box mounting bushes<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; Steering linkage joints and seals<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As with most vehicles of this age, it is extremely common for multiple components to be worn simultaneously. A full suspension refresh typically delivers a far greater improvement than replacing individual parts in isolation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Best Suspension Upgrades for HD Holden<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The HD responds well to modern suspension improvements while still retaining its original character when done tastefully.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Popular upgrades include:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; modern shock absorbers with improved damping control<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; upgraded front control arm bushes (including polyurethane options)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; heavy-duty sway bars for reduced body roll<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; refreshed steering linkage components for tighter response<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; leaf spring reconditioning or replacement packs<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; upgraded ball joints and tie rod ends for improved accuracy<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">These upgrades deliver:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; improved highway stability<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; reduced body roll in corners<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; better steering response and feel<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; improved tyre wear control<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uf0b7&nbsp; and a more composed overall driving experience<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It\u2019s still very much a comfort-first design, built around simplicity and durability, but the HD adds a layer of polish that makes it more pleasant to live with on longer drives.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/australianholden.com\/index.php\/australian-holden\/h-series\/hd-holden\/\" type=\"page\" id=\"25\">HD Holden<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Previous: EH Holden Suspension and Steering<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Next: HR Holden Suspension and Steering<\/p>\n","protected":false},"excerpt":{"rendered":"<p>HD Holden Previous: EH Holden Suspension and Steering Next: HR Holden Suspension and Steering The HD Holden (1965\u20131966) often gets overshadowed by what came before and after it, but underneath, it represents a meaningful step forward in Holden\u2019s mid-60s suspension tuning philosophy. It sits between the earlier EH-era simplicity and the more refined HR update, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":576,"parent":25,"menu_order":15,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"class_list":["post-6379","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>HD Holden Suspension &amp; Steering - Australian Holden<\/title>\n<meta name=\"description\" content=\"Compared to the EH\/EJ , the HD Holden didn\u2019t reinvent the wheel. 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