4L60E Reference

OEM 4L60E-Sun-Shell 4L60E Beast Sun Shell: Symptoms, Specs & Install

Name: 4L60E Beast Sun Shell (OE# 4L60E-Sun-Shell)
SKU: 4L60E-Sun-Shell
Availability: InStock

If you searched for 4L60E-Sun-Shell, this is the part. 4L60E Beast Sun Shell for the 4L60E. Below: failure symptoms, electrical specs, install procedure.

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What it does

Hardened sun shell that prevents the common 4L60E sun shell stripping failure. Standard upgrade for any 4L60E rebuild.

Fitment

1993-2008 GM trucks, SUVs, cars with 4L60E or 4L65E.

Common failure symptoms

Stripped sun shell splines, no 2nd or 4th gear, transmission failure under tow load

Electrical / install specs

Forged steel HD upgrade.
Direct OEM replacement fit.
Required for trucks and SUVs over 5,000 lbs.

Run a resistance check before condemning. Bad wiring, corroded harness pins, or a failing PCM driver can cause identical symptoms.

Replacement procedure

Transmission out of vehicle for sun shell replacement
Disassemble center planet assembly
Remove old sun shell
Inspect input drum splines — replace if worn
Install HD beast sun shell
Reassemble planetary
Refill with Dexron VI

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