National Drivetrain CatalogPOSI PERFORMANCE DIFFERENTIAL - The patented carbon-carbon fabric clutch maintains its lubricity to provide smooth, quiet operation. - GM 3-Series Car: 1965-1971 - 8.875 inch ring gear - 12 bolts - 3.07 to 3.90 - 30 SPLINE

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Whether you are a novice or a pro, you will need a good and easy to use bearing puller for the job, and we got them!
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Ring And Pinion

Differential and Ring & Pinion Setup Tips and Tricks

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Time Saving Bearing Puller #90-0001-1

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Ring And Pinion