TrakMotive SB-8104 CV Axle Shaft - Rear Left or Rear Right

Rear CV Axle Shaft for Subaru Fitment

TrakMotive SB-8104 is a new CV axle shaft for rear Subaru applications that need a direct driveline replacement. It is built with a neoprene boot, a supplied axle nut, and application-specific spline counts for a precise fit on listed Forester, Crosstrek, XV, and XV Crosstrek models.

• Brand: TrakMotive CV Axle Shaft
• Part number: SB-8104
• New axle shaft assembly
• Rear application for Subaru Forester, Crosstrek, XV, and XV Crosstrek
• Inboard joint type: male
• Outboard joint type: conventional
• Inboard splines: 25
• Outboard splines: 27
• Boot material: neoprene
• Axle nut included; M22 x 1.5 thread, 31.8 mm hex size, stake locking type
• Overall compressed length: 31.36 in. (796.5 mm)
• ABS tone ring not included

Product Details

This TrakMotive CV axle shaft is engineered for rear driveline service on Subaru vehicles with the listed fitments. It uses a male inboard shaft connection and a spline-style outboard connection, with 25 inboard splines and 27 outboard splines for the specified applications. The SB-8104 is listed for 2014-2018 Subaru Forester rear right and rear left, 2016-2017 Subaru Crosstrek rear, 2015-2016 Subaru XV rear, and 2013-2015 Subaru XV Crosstrek rear right and rear left. This part cross-references OE part number 28421SG000 for the same application.

Common Replacement Reasons

• Clicking or popping from the rear axle during turns
• Vibration under acceleration from worn CV joints
• Torn or leaking axle boot
• Excessive driveline play or noise
• Failed rear axle shaft on Subaru Forester, Crosstrek, XV, or XV Crosstrek

Installation Notes

Verify rear position, spline count, axle nut thread size, and compressed length before installation. The included axle nut uses an M22 x 1.5 thread with a stake-style locking design and 31.8 mm hex size. ABS axles fit non-ABS applications unless otherwise noted, and this axle does not include an ABS tone ring.

Quality Assurance

TrakMotive identifies this axle shaft as a new replacement part and states that its products are backed by a limited lifetime warranty. The company also notes ISO 9001:1007 and TS 16949:2009 certification.