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B&M 117308 Street/Strip Automatic Transmission 4L60E LS Engine

(Chevrolet Silverado 1500 1999-2013, Suburban 1500 2000-08, Camaro 1998-2002, Corvette 1998-2005, Tahoe 1998-2009, Colorado 2009-12 + 48 more models)

Manufacturer

Picture for manufacturer B&M

Part Number

117308
5 reviews
Sale Price

$3,999.95

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The B&M 117308 is a high-performance street/strip automatic transmission specifically designed for LS engine applications. This fully rebuilt and upgraded 4L60E transmission is engineered to handle increased power and torque while delivering reliable performance on both the street and strip.

Key Performance Upgrades:

  • Reinforced Input Drum: Enhanced durability to handle higher torque loads without failure
  • Heavy Duty Beast Sunshell: Strengthened internal component for improved reliability under stress
  • 29 Element Dual Cage Sprag: Upgraded sprag assembly for superior holding power and faster shifts
  • Billet Corvette 4th Gear Servo: Precision-machined billet servo for firmer, more consistent 3-4 shifts
  • 8 Count 3-4 Friction Pack with Kolene Steels: Increased clutch pack capacity for better grip and reduced slippage
  • All New High Performance Friction Plates: Fresh friction materials throughout for maximum holding power

Additional Features:

  • Seven hole LS bellhousing for direct bolt-on fitment to LS engines
  • Forward shift pattern for intuitive manual control
  • Fully re-calibrated valve body optimized for performance applications
  • All new solenoids and wiring harness for reliable electronic control

This transmission is ideal for LS-swapped vehicles, street rods, muscle cars, and drag racing applications where durability and performance are critical. Each unit is professionally built to B&M's exacting specifications.

Products specifications

Fits

Chevrolet Silverado 1500 1999-2013, Suburban 1500 2000-08, Camaro 1998-2002, Corvette 1998-2005, Tahoe 1998-2009, Colorado 2009-12, C1500 1998-99, Trailblazer 2003-08, K1500 1998-99, K2500 1998, Avalanche 1500 2002-06 + 43 more models

2WD/4WD

2WD

Automotive Item Grade

High Performance

Brand

B&M

Built-In Transmission Shield

No

California Proposition 65 Chemical Name

Lead

California Proposition 65 Chemical Name

Chromium (hexavalent compounds)

California Proposition 65 Chemical Name

Benzene

Case Material

Cast Aluminum

Category

Transmission

Color

Black

Control Type

Hydraulic

Cooler Included

No

Core Change Applicable

No

Dipstick Included

No

Disclaimer

Transmission shipped without speedometer driven gear or housing

Drive Type

RWD

Emission Code

5

Friction plates

New

Gear Ratio-First

3.06

Gear Ratio-Fourth

0.7

Gear Ratio-Second

1.63

Gear Ratio-Third

1

Horsepower Rating (HP)

500

Product Type

Transmission

Reverse Gear Ratio

2.29

Sub Category

Automatic Transmission Components

Torque Converter Included

No

Torque Rating (Ft/Lbs)

450

Transbrake

No

Transmission Model

4L60E

Transmission Series

Street/Strip

Transmission Speeds

4

Transmission Type

Automatic

Valve Body Pattern

Forward

Valve Body Type

Automatic

Warning

California Proposition 65

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