99 4L60E SHIFT KIT INSTALL
This may include recommendations to install solid Teflon sealing rings, a restrictor into the aluminum reverse apply-piston bleed hole, etc.įollow the shift-kit directions exactly. There may be several modifications recommended or required to internal components of the transmission during the rebuilding process. The shift-kit directions should be read in their entirety before rebuilding the transmission. The installer must be fully prepared to spend as much or more time installing the shift kit as they did rebuilding the transmission. Instead, I will go over general guidelines for shift-kit installation, and helpful tips and procedures to make the process easier.Įach manufacturer provides detailed and specific instructions for the correct installation of its shift kit. You can copy and paste this link to share: įor the purpose of this publication, it would be difficult to lay out the specific installation of each and every shift kit for these transmissions, as there are at least a dozen currently available. SHARE THIS ARTICLE: Please feel free to share this article on Facebook, in Forums, or with any Clubs you participate in. For a comprehensive guide on this entire subject you can visit this link: LEARN MORE ABOUT THIS BOOK HERE This Tech Tip is From the Full Book, GM AUTOMATIC OVERDRIVE TRANSMISSION BUILDER’S AND SWAPPER’S GUIDE. By sequencing the flow to the components, shift kits can control the shift firmness, improve holding power of the clutch packs, and improve the durability, performance, and longevity of the transmission. They do so by controlling the flow rate, pressure, and timing to the various components of the transmission.
Shift kits are designed to reprogram the shifting of the transmission. Several companies offer shift kits for the 4L60 transmissions however, installing a shift kit can be a detailed and complicated process.
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