{"id":5389,"date":"2020-06-21T19:55:42","date_gmt":"2020-06-21T23:55:42","guid":{"rendered":"http:\/\/mikestrawbridge.com\/blog\/?p=5389"},"modified":"2020-06-21T19:58:19","modified_gmt":"2020-06-21T23:58:19","slug":"chasing-death-wobble","status":"publish","type":"post","link":"http:\/\/mikestrawbridge.com\/blog\/2020\/06\/chasing-death-wobble\/","title":{"rendered":"Chasing Death Wobble"},"content":{"rendered":"\n<h4 class=\"wp-block-heading\">Changing parts to reduce wheel shimmy<\/h4>\n\n\n\n<p>After a recent tire rotation, I noticed that the steering had a small shake.  Over time that shake got worse and worse.  Then one day, I hit a bump, and there it was full-on Death Wobble.<\/p>\n\n\n\n<p>I immediately ordered a track bar. <a href=\"https:\/\/amzn.to\/2YTnvPT\">https:\/\/amzn.to\/2YTnvPT<\/a>    Because almost every Jeep that has come through my shop with death wobble, the problem was the track bar.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"340\" height=\"82\" src=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2020\/06\/trackbar.jpg\" alt=\"\" class=\"wp-image-5390\" srcset=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2020\/06\/trackbar.jpg 340w, http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2020\/06\/trackbar-300x72.jpg 300w\" sizes=\"(max-width: 340px) 100vw, 340px\" \/><\/figure>\n\n\n\n<!--more-->\n\n\n\n<p>When I unbolted the axle end, I thought I had found the problem. The mounting hole was oval-shaped. I welded a washer over the hole and drilled it out to tightly fit the mounting bolt.  A test drive showed this was not the problem.<\/p>\n\n\n\n<p>So I went ahead and installed the new track bar.  I had to use a <a href=\"https:\/\/amzn.to\/2BpTYFi\">tie road end breaker<\/a> to get the tapered pin out of the mount as it had been in there a while. <\/p>\n\n\n\n<p>A test drive showed the steering felt much better but there was still some shimmy at 55 to 60 MPH. I hit my test bump nad is was back to death wobble. But there was some improvement.<\/p>\n\n\n\n<p>I had my Dad watch the steering while I worked the steering wheel and he noticed some play in one of the tie rod ends. So I ordered those.<\/p>\n\n\n\n<ul><li><a href=\"https:\/\/amzn.to\/37R1kxz\"><img decoding=\"async\" alt=\"Moog ES3094L Tie Rod End\" src=\"https:\/\/images-na.ssl-images-amazon.com\/images\/I\/31QPPQ2988L._AC_.jpg\"\/><\/a><\/li><\/ul>\n\n\n\n<p><a href=\"https:\/\/amzn.to\/37R1kxz\">Moog ES3094L Tie Rod End<\/a><\/p>\n\n\n\n<ul><li><a href=\"https:\/\/amzn.to\/37NoPI9\"><img decoding=\"async\" alt=\"Moog ES3095R Tie Rod End\" src=\"https:\/\/images-na.ssl-images-amazon.com\/images\/I\/312K3XZ2EGL._AC_.jpg\"\/><\/a><\/li><\/ul>\n\n\n\n<p>Moog E<a href=\"https:\/\/amzn.to\/37NoPI9\">S3095R Tie Rod End<\/a><\/p>\n\n\n\n<p>Curiously, when I had my toe rod off the Jeep, I noticed that is was installed backwards.  When I reinstalled it, I swapped the tie rod end for end and that makes the grease serts easier to access and now it matched the factory manual.<\/p>\n\n\n\n<p>I did not take time to reset the toe but I counted the threads on the old tie rod ends and put the new ones in the same number of threads.  A test drive showed the shimmy was gone and the feel was the steering was better. But the steering wheel was at an odd angle when straight. So I knew the alignment was probably off.<\/p>\n\n\n\n<p>The next day I got out the Longacre alignment boards that I use on the race car and set them up.  Sure enough he toe was way off.  I dialed it in to near zero toe.   A test drive showed the steering wheel was back to straight but the shimmy was not gone either. The test bump shoed still some wobble but it went away much faster.<\/p>\n\n\n\n<ul><li><a href=\"https:\/\/amzn.to\/2Bulj9e\"><img decoding=\"async\" alt=\"Longacre LON52-79501 Toe-in Plate\" src=\"https:\/\/images-na.ssl-images-amazon.com\/images\/I\/61UBG49ByJL._AC_SX679_.jpg\"\/><\/a><\/li><\/ul>\n\n\n\n<p>Click image to open expanded view<\/p>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"title\">Lo<a href=\"https:\/\/amzn.to\/2Bulj9e\">ngacre LON52-79501 Toe-in Plate<\/a><\/h1>\n\n\n\n<p>There are still two tie rod ends that I can change. The control arm bushings are relatively new so I don&#8217;t think they are causing trouble. And I refuse to try the steering stabilizer as that only masks the real problem.<\/p>\n\n\n\n<p>So I got to thinking about how the shimmy started after the tire rotation.   I removed the front tires and rechecked the balance. They were both at Zero grams.  So I decided to try swapping sides with the tires to spin them in the opposite direction.<\/p>\n\n\n\n<p>So far, the shimmy is gone and there was no sake on the test bump. Could it have been simply the tires all along?<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/amzn.to\/2YTnvPT\"><img decoding=\"async\" loading=\"lazy\" width=\"704\" height=\"528\" src=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2020\/06\/tracbarmoog.jpg\" alt=\"\" class=\"wp-image-5391\" srcset=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2020\/06\/tracbarmoog.jpg 704w, http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2020\/06\/tracbarmoog-300x225.jpg 300w\" sizes=\"(max-width: 704px) 100vw, 704px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/amzn.to\/37NoPI9\"><img decoding=\"async\" loading=\"lazy\" width=\"704\" height=\"528\" src=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2020\/06\/tierodright.jpg\" alt=\"\" class=\"wp-image-5392\" srcset=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2020\/06\/tierodright.jpg 704w, http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2020\/06\/tierodright-300x225.jpg 300w\" sizes=\"(max-width: 704px) 100vw, 704px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/amzn.to\/37R1kxz\"><img decoding=\"async\" loading=\"lazy\" width=\"704\" height=\"528\" src=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2020\/06\/tierodleft.jpg\" alt=\"\" class=\"wp-image-5393\" srcset=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2020\/06\/tierodleft.jpg 704w, http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2020\/06\/tierodleft-300x225.jpg 300w\" sizes=\"(max-width: 704px) 100vw, 704px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/amzn.to\/2Bulj9e\"><img decoding=\"async\" loading=\"lazy\" width=\"396\" height=\"528\" src=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2020\/06\/toealignment.jpg\" alt=\"\" class=\"wp-image-5394\" srcset=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2020\/06\/toealignment.jpg 396w, http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2020\/06\/toealignment-225x300.jpg 225w\" sizes=\"(max-width: 396px) 100vw, 396px\" \/><\/a><figcaption><a href=\"https:\/\/amzn.to\/2Bulj9e\">https:\/\/amzn.to\/2Bulj9e<\/a><\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Changing parts to reduce wheel shimmy After a recent tire rotation, I noticed that the steering had a small shake. Over time that shake got worse and worse. Then one day, I hit a bump, and there it was full-on Death Wobble. I immediately ordered a track bar. https:\/\/amzn.to\/2YTnvPT Because almost every Jeep that has &hellip; <\/p>\n<p class=\"link-more\"><a href=\"http:\/\/mikestrawbridge.com\/blog\/2020\/06\/chasing-death-wobble\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Chasing Death Wobble&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[210,6],"tags":[591],"_links":{"self":[{"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/posts\/5389"}],"collection":[{"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/comments?post=5389"}],"version-history":[{"count":3,"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/posts\/5389\/revisions"}],"predecessor-version":[{"id":5397,"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/posts\/5389\/revisions\/5397"}],"wp:attachment":[{"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/media?parent=5389"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/categories?post=5389"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/tags?post=5389"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}