1.0Rapid Dieselhttps://rapiddiesel.longtermfix.com/wpadminhttps://rapiddiesel.longtermfix.com/wp/author/admin/rich600338<blockquote class="wp-embedded-content" data-secret="j4ad6be6tG"><a href="https://rapiddiesel.longtermfix.com/wp/performance-upgrade/diesel-transmission-upgrades/">Diesel Transmission Upgrades</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://rapiddiesel.longtermfix.com/wp/performance-upgrade/diesel-transmission-upgrades/embed/#?secret=j4ad6be6tG" width="600" height="338" title="“Diesel Transmission Upgrades” — Rapid Diesel" data-secret="j4ad6be6tG" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://rapiddiesel.longtermfix.com/wp/wp-includes/js/wp-embed.min.js </script> Serving Cummins, Duramax, and Powerstroke owners across the Inland Empire. Why Diesel Transmission Upgrades? Signs You May Need Upgrades Excessive gear hunting Slipping gears Delayed or harsh shifting Transmission overheating Weak acceleration under load Performance Benefits Improved Shift Quality Better Power Delivery Increased Power Handling Capability Improved Reliability Under Load Better Overall Drivability Transmission Upgrades […]https://rapiddiesel.longtermfix.com/wp/wp-content/uploads/2026/05/image_of_mechanic_doing_performance_202605181135.jpeg1500837