![GM Automatic Transmission Performance Servo Upgrade Assembly [Corvette-Style]](https://maximumperformance.us/wp-content/uploads/2026/03/555-603212-600x613.jpg "555-603212")
JEGS 555-603212 Transmission Servo Upgrade Features:
Firm 1-2 and 2-3 shift
Gives 2-4 band higher torque in 2nd gear
Perfect for high performance or heavy-duty transmission builds
Largest apply area for greater holding power
Compatible with GM Powerglide, TH350, TH400 & 700R4, 4L60-E, 4L80-E transmissions
Servo Material: Aluminum
GM Automatic Transmission Performance Servo Upgrade Assembly [Corvette-Style]
JEGS 555-603212 Transmission Servo Upgrade Features: Firm 1-2 and 2-3 shift Gives 2-4 band higher torque in 2nd gear Perfect for high performance or heavy-duty transmission builds Largest apply area for greater holding power Compatible with GM Powerglide, TH350, TH400 & 700R4,…
| Weight | 1.8 lbs |
|---|---|
| Dimensions | 4.4 × 6 × 7.5 in |
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