VBFIX-logo-web details-chart-web video-logo-web printlink SERVOFIX-logo-web r_and_r_only maillink sonnax-black Facebook-color Twitter-color LinkedIn-color Youtube-color
Faster tougher stronger

GM 700-R4, 4L60, 4L60-E, 4L65-E & 4L70-E

Heavy Duty & High Performance Upgrades

Running the 700-R4/4L60-E family of transmissions at extreme power levels demands innovative parts designed not only to work better, but to work better together. From street/strip upgrades and heavy-duty jobs to top-tier racing builds, Sonnax makes it easy to deliver rock-solid transmissions customized for any performance level.

View Performance Parts by Application:

4l60e build sheets 3d2

Build the killer 4L60-E with Sonnax

View, print or download build charts

4L60-E Series Performance Build Charts

Use these charts to get maximum results out of your 4L60-E series rebuild! First choose your build type, then view the list of Sonnax parts recommended to achieve the ideal upgrade for your transmission.

Heavy-Duty Pickup Level 1 Performance Level 2 Performance Level 3 Performance Print Build Sheets

Heavy-Duty Pickup Builds

Option A

Quick upgrades for big performance without a big price tag.

Option B

Best parts for heavy-duty recalibration and durability.

  • Performance Pack HP‑4L60E‑01
  • SmartShell® HD Reaction Shell Kit 77749‑02K
  • Rear Stator Support Bushing 77002BT‑01
  • 4th Gear Super Hold Servo 77767K
  • Heavy-Duty 2-3 Shift Valve 77754-41

Level 1 Performance Builds

For lightly modified performance/enthusiast vehicles.

Option A

Upgrades for performance recalibration and durability, no trans removal required. Most change in shift feel comes from the servos.

Option B

Best parts for performance recalibration and durability. Most change in shift feel comes from the Performance Pack.

Level 2 Performance Build

For moderately modified performance vehicles (up to 450HP).

Heavy-duty parts and recalibration allow transmissions to endure power levels beyond what a stock transmission is built to handle.

Level 3 Performance Build

For all extreme performance applications, above 450HP.

Ultimate lineup delivering maximum strength, durability and quick shifts featuring Smart-Tech® parts to ensure these units stay out of the shop.