TrakMotive
AAR CV Axle Shaft

TrakMotive GM-8389 CV Axle Shaft - Front Right

Brand TrakMotive GM-8389
Position Front Right
Abs Tone Ring Included No
Axle Nut Head Type Hex
Axle Nut Height (in) 0.85
Axle Nut Height (mm) 21.5
Axle Nut Hex Size (in) 1.42
Axle Nut Hex Size (mm) 36
Axle Nut Included Yes
Axle Nut Length (in) 1.64
Axle Nut Length (mm) 41.57
Axle Nut Locking Type Self-Lock
Axle Nut Thread Size M24*1.5
Boot Material Neoprene
Inboard Joint Type Male
Inboard Shaft Connection Style Spline
New Or Remanufactured New
Number Of Inboard Splines 27
Number Of Outboard Splines 33
Outboard Joint Type Conventional
Outboard Shaft Connection Style Spline
Overall Compressed Length (in) 24.57
Overall Compressed Length (mm) 624
Product line AAR CV Axle Shaft
Fits Cadillac and Buick · 14 vehicles

New replacement shaft. Built as a CV axle shaft for straightforward service replacement.

Neoprene boot. Durable boot material helps protect the joint from wear.

Axle nut included. Comes with a self-locking hex nut for easier installation.

Cross-references TrakMotive GM-8389 for the same application. See all 1.

$143.09Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Order total $143.09
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Front Right CV Axle Shaft for Buick and Cadillac

TrakMotive AAR CV Axle Shaft GM-8389 is a new front right axle assembly for select Buick Regal and Cadillac XTS applications. It is built with a neoprene boot, spline-style shaft connections, and includes the axle nut for a direct replacement on the listed vehicles.

Key Features

  • Fits 2011-2017 Buick Regal, front right
  • Fits 2013-2019 Cadillac XTS, front right
  • New CV axle shaft for driveline repair and replacement
  • Neoprene boot material for CV joint protection
  • 27 inboard splines and 33 outboard splines
  • Male inboard joint with conventional outboard joint
  • Overall compressed length: 24.57 in. (624 mm)
  • Includes axle nut with M24 x 1.5 thread, 36 mm hex size, and self-lock design
  • No ABS tone ring included

Product Details

The TrakMotive AAR CV Axle Shaft line focuses on replacement axle assemblies for specific vehicle applications, and GM-8389 follows that approach with application-matched dimensions and connection styles. This part number is built for the front right position on the Buick Regal and Cadillac XTS listings shown here, including updated-design applications and models with the optional M7V transmission. TrakMotive GM-8389 is a direct-fit driveline service part for restoring axle function after wear, boot damage, or joint noise.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Repair

  • Clicking or popping from a worn CV joint during turns
  • Vibration or shudder caused by a damaged axle shaft
  • Torn CV boot conditions that can lead to grease loss and contamination
  • Axle noise from spline or joint wear
  • Front right driveline failure on listed Buick Regal and Cadillac XTS vehicles

Installation Notes

Verify spline count, compressed length, and axle nut thread size before installation. This axle uses a hex-style axle nut and a self-lock design, and the included nut should be matched to the vehicle’s service procedure. ABS tone ring is not included, so confirm the vehicle’s original axle configuration before ordering. Always inspect seals, hub condition, and surrounding suspension components during replacement.

Quality Assurance

TrakMotive states that this AAR CV Axle Shaft is backed by a limited lifetime warranty. The company also notes ISO 9001:1007 and TS 16949:2009 certification, supporting controlled manufacturing and product consistency.

This part fits 14 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypePositionNotes
2019CadillacXTSFront RightUpdated Design; Opt. M7V Trans.; AAR CV Axle Shaft
2018CadillacXTSFront RightUpdated Design; Opt. M7V Trans.; AAR CV Axle Shaft
2017BuickRegalFront RightUpdated Design; Opt. M7V Trans.; AAR CV Axle Shaft
2017CadillacXTSFront RightUpdated Design; Opt. M7V Trans.; AAR CV Axle Shaft
2016BuickRegalFront RightUpdated Design; Opt. M7V Trans.; AAR CV Axle Shaft
2016CadillacXTSFront RightUpdated Design; Opt. M7V Trans.; AAR CV Axle Shaft
2015BuickRegalFront RightUpdated Design; Opt. M7V Trans.; AAR CV Axle Shaft
2015CadillacXTSFWDFront RightUpdated Design; Opt. M7V Trans.; AAR CV Axle Shaft
2014BuickRegalFront RightUpdated Design; Opt. M7V Trans.; AAR CV Axle Shaft
2014CadillacXTSFWDFront RightUpdated Design; Opt. M7V Trans.; AAR CV Axle Shaft
2013BuickRegalFront RightUpdated Design; Opt. M7V Trans.; AAR CV Axle Shaft
2013CadillacXTSFWDFront RightUpdated Design; Opt. M7V Trans.; AAR CV Axle Shaft
2012BuickRegalFront RightUpdated Design; Opt. M7V Trans.; AAR CV Axle Shaft
2011BuickRegalFront RightUpdated Design; Opt. M7V Trans.; AAR CV Axle Shaft
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
TrakMotive — GM-8389