Black Sky Diesel
Store
Book

BLACKSKYDIESEL

Canada's premier diesel performance specialists.

Bay C, 1202 5 Street
Nisku, AB  T9E 8B6
(587) 986-2383
5.025 Google reviews

Shop

  • Duramax Parts
  • Cummins Parts
  • Powerstroke Parts
  • EcoDiesel Parts
  • Merch & Apparel
  • Sale Items

Company

  • Cable Spool Skid
  • About Us
  • Services
  • Service Areas
  • Blog
  • Dealer Program
  • Careers
  • Contact

Support

  • Get a Quote
  • Shipping & Returns
  • Warranty
  • FAQ
  • Privacy Policy
  • Terms of Service

© 2026 Black Sky Diesel Inc. All rights reserved. 🇨🇦

Site by
DuramaxCumminsPowerstroke
Parts > ShopHome/Shop/Drivetrain & Differentials/Chevrolet, GMC Differential - Rear - Zumbrota Drivetrain - RAA435-2119E
Chevrolet, GMC Differential  - Rear - Zumbrota Drivetrain - RAA435-2119E
Out of Stock
Randy's Worldwide : Zumbrota DrivetrainSKU: BSD-ZUM-RAA435-2119E

Chevrolet, GMC Differential - Rear - Zumbrota Drivetrain - RAA435-2119E

$2,169.04
Shipping Estimate

Enter destination details for an instant shipping estimate. Final rates are confirmed at checkout.

Description

Rear Axle Assembly
RAA435-2119E
Ratio: 3.73; GM 10 Bolt 8.6 Inch Ring Gear, With ABS Sensor In Housing, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts
,and,06,09,3.73,435-2119E,8.5,ASSY,AXLE,DIFFS,ENVOY,GM,RAA,TRAILBLAZER,
Reman Rear Axle Assy 8.6" 06-09 Rainier, Envoy, Trailblazer, Ascender 3.73 Ratio
Reman Rear Axle Assy GM 8.6" 06-07 Buick Rainier, 06-09 GMC Envoy, Chevy Trailblazer EXT, SAAB 9-7X, 06 Isuzu Ascender, 3.73 Ratio
Zumbrota Drivetrain Axle Assemblies are rebuilt to the highest quality standards of precision and reliability. Each Axle assembly is thoroughly inspected for straightness, cracks and surface wear. All internal components are fully inspected and tested including ring and pinions, internal gears, clutches and carriers. All bearings and seals are replaced. Gears are fully inspected for optimal tooth contact patterns and correct rolling torque using inch pound measurements for precise setup and longevity. Correct gear backlash is set to ensure proper gear lubrication and quiet operation. Axle tubes are inspected to ensure OEM standards of straightness. Zumbrota uses an exclusive hydro-blast rinse and sandblasting procedure on internal and external parts, followed by a proprietary shot-enticed deep cleaning, setting the standard for Axle assembly remanufacturing.
All tubes are inspected to ensure they are straightened to OEM specifications.
All housings are tested for surface wear and cracks.
100% inspection of all internal parts, including Ring and Pinion’s, Internal Gears, Clutch’s and Carrier’s
100% replacement of bearings, seals, crush sleeves, pinion nuts and shims.
All housings are cleaned utilizing our state of the art hydro blasting and rinsing process. This process is what brings all cases back to the OEM finish.
Correct rolling torque established using inch pound measurement’s for precision setup and longevity
All tubes are inspected to ensure they are straightened to OEM specifications.
All housings are tested for surface wear and cracks.
100% inspection of all internal parts, including Ring & Pinion’s, Internal Gears, Clutch’s & Carrier’s
100% replacement of bearings, seals, crush sleeves, pinion nuts and shims.
All housings are cleaned utilizing our state of the art hydro blasting and rinsing process. This process is what brings all cases back to the OEM finish.
Correct rolling torque established using inch pound measurement’s for precision setup and longevity
Axle Type: Semi Floating
California Proposition 65: WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Cover Included: Yes
Fluid Included: No
Gear Ratio: 3.73

Detailed Fitment Results
Year Make Model Sub Model Body Type Drive Type Bed Length (in) Fitment Notes 2006 Chevrolet Trailblazer EXT LS / LT Ratio: 3.73; GM 10 Bolt 8.6 Inch Ring Gear, With ABS Sensor In Housing, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2006 Chevrolet Trailblazer LT / SS / LS Ratio: 3.73; GM 10 Bolt 8.6 Inch Ring Gear, With ABS Sensor In Housing, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2006 GMC Envoy XL Denali / SLE / SLT Ratio: 3.73; GM 10 Bolt 8.6 Inch Ring Gear, With ABS Sensor In Housing, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2006 GMC Envoy Denali / SLE / SLT Ratio: 3.73; GM 10 Bolt 8.6 Inch Ring Gear, With ABS Sensor In Housing, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2007 Chevrolet Trailblazer LT / SS / LS Ratio: 3.73; GM 10 Bolt 8.6 Inch Ring Gear, With ABS Sensor In Housing, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2007 GMC Envoy Denali / SLE / SLT Ratio: 3.73; GM 10 Bolt 8.6 Inch Ring Gear, With ABS Sensor In Housing, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2008 Chevrolet Trailblazer LT / SS / Base Ratio: 3.73; GM 10 Bolt 8.6 Inch Ring Gear, With ABS Sensor In Housing, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2008 GMC Envoy Denali / SLE / SLT Ratio: 3.73; GM 10 Bolt 8.6 Inch Ring Gear, With ABS Sensor In Housing, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2009 Chevrolet Trailblazer LT / SS Ratio: 3.73; GM 10 Bolt 8.6 Inch Ring Gear, With ABS Sensor In Housing, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2009 GMC Envoy Denali / SLE / SLT Ratio: 3.73; GM 10 Bolt 8.6 Inch Ring Gear, With ABS Sensor In Housing, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts

Related Products

94-99 Dodge Ram 2500 Base (RWD) Differential - Rear - Zumbrota Drivetrain - RAA435-1764B-P

94-99 Dodge Ram 2500 Base (RWD) Differential - Rear - Zumbrota Drivetrain - RAA435-1764B-P

$4,493.39

Cadillac, Chevrolet, GMC (4WD/RWD) Differential Ring and Pinion Kit - Rear - Yukon Gear and Axle - YGK2005

Cadillac, Chevrolet, GMC (4WD/RWD) Differential Ring and Pinion Kit - Rear - Yukon Gear and Axle - YGK2005

$2,548.94

Ford, Lincoln, Mazda, Mercury... (4WD/RWD) Differential Ring and Pinion - Rear - USA Standard Gear - ZG F8.8-327

Ford, Lincoln, Mazda, Mercury... (4WD/RWD) Differential Ring and Pinion - Rear - USA Standard Gear - ZG F8.8-327

$434.84

Chevrolet, GMC (RWD) Differential - Rear - Zumbrota Drivetrain - RAA435-1215CL-P

Chevrolet, GMC (RWD) Differential - Rear - Zumbrota Drivetrain - RAA435-1215CL-P

$2,789.64