SKU: SABSA499
MPN: SA499
How To Rebuild & Modify GM 4L80E Transmissions is the definitive technical manual for anyone serious about transmission performance, durability, and customization. This guide is perfect for professional rebuilders, engine builders, and dedicated enthusiasts planning high-performance swaps. It covers every aspect of the 4L80E, GM's renowned heavy-duty four-speed automatic transmission.
The manual provides step-by-step technical instruction on disassembly, inspection, bearing and seal replacement, and reassembly procedures. It includes detailed explanations of the valve body architecture, torque converter mechanics, and shift calibration, which are essential for upgrading to modern TCM tuning or adapting the 4L80E to different engine platforms.
This comprehensive guide is invaluable for anyone looking to improve shift response, optimize line pressure, or select gear ratios for specific power levels. With detailed exploded diagrams and technical breakdowns, it helps avoid costly mistakes during the rebuild process, making it an essential resource for both professionals and DIY enthusiasts.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
