Where is The Rear Axle Serial Number Stamp?

Reader Question
I was told the rear axle on my 1986 Pontiac Bonneville is going out and was told to look on the axle to find the serial number……where do i look for the serial number??
Audrey

Hey there Audrey
You can usually see a stamped number on the exterior axle tube or housing itself. Start at the wheel area and move inward towards the differential gears. You might want to get a can of brake cleaner and clean off the axle housing first, then take a piece of chalk that you can draw on the number once you find it.

They are not easy to find, you might be able to feel this stamp more so than see this stamp. Stamp meaning, they branded the axle housing with a number just like you brand cattle.

The number is part of the housing now, not attached to it with a sticker or tag. Some vehicles also had a small military dog tag bolted attached to one of the rear end bolts, but most of the time those fell of or where taken off over the years and not reinstalled.

Blessings,
Austin Davis