Yukon ZA G8.2BOP-L Left Rear Axle Shaft GM 8.2 BOP 28-Spline Buick Olds Pontiac For Sale - New and Used

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Part Brand: Yukon Gear & Axle

Part Number: ZA G8.2BOP-L

Vehicle Fitment

• 1964–1972 Buick Skylark (GM 8.2\" BOP Rear Axle, 28-Spline, Bolt-In)
• 1965–1972 Buick Electra (GM 8.2\" BOP Rear Axle, 28-Spline, Bolt-In)
• 1964–1972 Oldsmobile 442 (GM 8.2\" BOP Rear Axle, 28-Spline, Bolt-In)
• 1964–1972 Oldsmobile Cutlass (GM 8.2\" BOP Rear Axle, 28-Spline, Bolt-In)
• 1964–1972 Pontiac Catalina (GM 8.2\" BOP Rear Axle, 28-Spline, Bolt-In)
• 1967–1972 Pontiac Firebird (GM 8.2\" BOP Rear Axle, 28-Spline, Bolt-In)
• 1964–1972 Pontiac Grand Prix (GM 8.2\" BOP Rear Axle, 28-Spline, Bolt-In)
• 1964–1971 Pontiac GTO (GM 8.2\" BOP Rear Axle, 28-Spline, Bolt-In)
• 1965–1972 Pontiac LeMans (GM 8.2\" BOP Rear Axle, 28-Spline, Bolt-In)
• 1964–1970 Pontiac Tempest (GM 8.2\" BOP Rear Axle, 28-Spline, Bolt-In)
• 1969–1972 Pontiac Trans Am (GM 8.2\" BOP Rear Axle, 28-Spline, Bolt-In)

Fitment Notes

• Left (driver) side axle shaft only — sold individually; right side requires a separate part number
• Fits the GM 8.2\" BOP (Buick / Oldsmobile / Pontiac) bolt-in axle design only — does NOT fit the Chevy/GMC version of the GM 8.2\" axle, which uses a different housing and bearing retention design
• Axle bearings and seals are NOT included — must be sourced separately
• Wheel studs are NOT included
• Two bearing spacers are included with the axle to accommodate multiple bearing options — see Specifications section for spacer usage details
• Always physically confirm your vehicle\'s rear axle type (GM 8.2\" BOP bolt-in) and spline count before ordering

Features

• Manufactured from 1541 carbon steel for superior strength and long-term durability over factory original axle shaft material
• Bolt-in axle design replaces the factory shaft with a direct-fit installation requiring no C-clip removal
• 28-spline inner end mates correctly with the GM 8.2\" BOP carrier for a precise, rattle-free fit
• 29-7/8\" length engineered specifically for left-side BOP axle housing dimensions
• Includes two bearing spacers to accommodate both sealed RW507CR and Set 9 bearing configurations
• 5 x 4.75\" wheel stud bolt pattern matches factory BOP wheel hub spacing
• Press-in wheel stud design allows replacement of individual studs without full axle removal
• Backed by a 1-year limited warranty against manufacturing defects

Specifications

• Position: Left (Driver) Side Rear
• Axle Type: Bolt-In
• Differential Application: GM 8.2\" BOP (Buick / Oldsmobile / Pontiac)
• Axle Length: 29-7/8\" (29.88\")
• Inner Spline Count: 28
• Axle Material: 1541 Carbon Steel
• Wheel Stud Pattern: 5 x 4.75\"
• Wheel Stud Type: Press-In
• Bearing Spacer (Thin): 1/2\" — for use with sealed RW507CR bearings
• Bearing Spacer (Thick): 0.826\" — for use with Set 9 bearings
• Wheel Studs Included: No
• Bearings/Seals Included: No
• Warranty: 1 Year Limited

Included Components

• 1x Left rear axle shaft (29-7/8\", 28-spline, 1541 carbon steel)
• 1x Thin bearing spacer (1/2\") for RW507CR sealed bearings
• 1x Thick bearing spacer (0.826\") for Set 9 bearings

Product Description

The Yukon ZA G8.2BOP-L is a USA Standard Gear left rear axle shaft engineered specifically for the GM 8.2\" BOP (Buick / Oldsmobile / Pontiac) bolt-in rear differential. Spanning a broad range of classic GM muscle cars and personal luxury vehicles from 1964 through 1972 — including the Pontiac Firebird, GTO, Trans Am, Oldsmobile 442 and Cutlass, and Buick Skylark — this axle shaft is an essential drivetrain replacement for restorations, performance builds, and repair applications on these iconic platforms.

Machined from 1541 carbon steel, the ZA G8.2BOP-L delivers greater strength and fatigue resistance than the factory original shaft material, making it a worthwhile upgrade in addition to a direct replacement. At 29-7/8\" in length with 28 inner splines, the shaft is dimensioned precisely for the left side of the GM 8.2\" BOP housing. The bolt-in design eliminates the need for C-clip removal during installation and simplifies the axle change process. Two bearing spacers are included to allow compatibility with either sealed RW507CR bearings (using the 1/2\" thin spacer) or Set 9 bearings (using the 0.826\" thick spacer) — the correct spacer must be installed onto the shaft before the bearing is pressed on.

This axle is sold individually as the left (driver) side only; a separate part number is required for the right side. Axle bearings, seals, and wheel studs are not included and must be sourced separately. It is critical to confirm that your vehicle uses the GM 8.2\" BOP bolt-in axle housing — this shaft is not compatible with the Chevy/GMC variant of the 8.2\" axle, which uses a different housing design and bearing retention method. Backed by a 1-year limited warranty against manufacturing defects.

*Parts are for USA spec vehicles, please contact us to verify fitment on JDM & international models.

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