HP 4L60E Rebuilt Transmission for GM LS 4WD 98-06

HP 4L60E Rebuilt Transmission – 600 HP Rated, Dyno Tested, 4WD LS Style (98-06)

This premium high-performance rebuilt 4L60E transmission is engineered for GM LS-powered 4WD applications from 1998-2006. Rated for up to 600 HP, it combines factory reliability with top-tier upgrades from Raybestos, TransGo, and Sonnax for smooth, strong shifts and long-term durability.

Why Choose This Transmission?

• Premium Clutches & Bands: New Raybestos Red frictions and steels plus a wide heavy-duty 2-4 band deliver exceptional holding power under load.
• Valve Body & Pump Upgrades: TransGo HD shift kit, pressure regulator valve, and recalibrated pump with unbreakable rings restore and boost line pressure for crisp, consistent shifts.
• Sonnax Performance Pack: Smart Shell, .470 boost valve with O-rings, 2-3 shift valve, heavy-duty input drum support with billet overrun piston, and abuse plugs eliminate common failure points.
• Heavy-Duty Internals: 7-clutch 3-4 pack, new low reverse and dual-cage forward sprags, Superior Super Hold 4th servo, plus all-new bushings, electronics, seals, gaskets, O-rings, and thrust washers.
• Ready to Install: Chrome pan with drain plug, 4x4 output shaft (2WD option available), 300mm LS-style bellhousing with top center bolt. Torque converter not included. No core charge.
• Proven Quality: Every unit is dyno tested in-house for correct operating pressures, leak-free performance, and quality shifts.

Ideal for LS engine swaps or high-horsepower GM truck/SUV builds. This transmission gives you confidence on the road or trail.

Comes with a 6 month or 5,000 mile warranty.