12bolt

GM 12-Bolt rear diff UPGRADE: Positraction and gear swap | Hagerty DIY

Do you have a whole bunch of power under your hood? Are you only spinning one wheel on those burnouts? Hagerty’s Davin Reckow is here to help you solve all your one-wheel peel problems. Our 1969 Chevy Camaro SS just got a freshly rebuilt, modestly hot-rodded engine, and it’s in serious need of a lower […]

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The ONLY WAY to fix a leaking 12-bolt GM rear diff pinion seal | Hagerty DIY

Does your rear diff leak gear oil everywhere? Do you keep installing a new pinion seal and having the same problem? Everyone has or will have this problem when installing a new pinion seal in your 12-bolt GM rear differential, but Hagerty’s Davin Reckow is here to help. GM made two different versions of the […]

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