{"id":17970,"date":"2023-10-04T11:40:13","date_gmt":"2023-10-04T15:40:13","guid":{"rendered":"https:\/\/gm-techlink.com\/?p=17970"},"modified":"2023-10-04T11:40:13","modified_gmt":"2023-10-04T15:40:13","slug":"m1l-dual-clutch-transmission-case-design-update","status":"publish","type":"post","link":"https:\/\/gm-techlink.com\/?p=17970","title":{"rendered":"M1L Dual Clutch Transmission Case Design Update"},"content":{"rendered":"

The case design of the DCT 8-speed transmission (RPO M1L) (Fig. 7) in 2020-2023 Corvettes is being updated toward the end of the 2023 model year.<\/p>\n

 <\/p>\n

\"\"Fig. 7<\/strong><\/p>\n

 <\/p>\n

A new Die 3 transmission can be easily identified by the 4 fasteners along the front edge of the sump pan. (Fig. 8, right) The previous Die 2 transmission has 6 fasteners along the front edge of the sump pan. (Fig. 8, left)<\/p>\n

 <\/p>\n

\"\"Fig. 8<\/strong><\/p>\n

 <\/p>\n

Service transmissions will also begin to migrate to this updated design for older model years and will require additional parts to be ordered when used in an older model year.<\/p>\n

Die 1 cases were originally produced with a stamped sump pan with rails. The stamped pans were replaced with the Die 2 cast pans. If any repairs were needed on a Die 1 transmission, it is possible to find a Die 1 transmission with a Die 2 pan installed, which can be identified by comparing the Die 1 and Die 2 bolt patterns. The Die 1 transmission sump pan has 15 bolts (Fig. 9) and the Die 2 cast sump pan has 19 bolts. If the Die 2 pan is installed on the Die 1 transmission, there will be holes in the pan without bolts.<\/p>\n

\"\"Fig. 9<\/strong><\/p>\n

 <\/p>\n

TIP<\/strong>: For track use, Z51-equipped Stingrays with Die 3 cases no longer need the additional 2 quarts (1.89 L) of transmission fluid.<\/p>\n

TIP<\/strong>: The canister filter for regular maintenance remains unchanged.<\/p>\n

Refer to Bulletin #23-NA-156 for more information.<\/p>\n

\u2013 Thanks to Marty Leach<\/em><\/p>\n

\n","protected":false},"excerpt":{"rendered":"

The case design of the DCT 8-speed transmission (RPO M1L) (Fig. 7) in 2020-2023 Corvettes is being updated toward the end of the 2023 model year.   Fig. 7   […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[158],"tags":[],"class_list":["post-17970","post","type-post","status-publish","format-standard","hentry","category-2023-october-a"],"_links":{"self":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/17970","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=17970"}],"version-history":[{"count":2,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/17970\/revisions"}],"predecessor-version":[{"id":17977,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/17970\/revisions\/17977"}],"wp:attachment":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=17970"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17970"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17970"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}