[RoadSide Dan]

The 9" Ford rear end (10 bolt with rear plate welded in place) in my "54 Chevy truck has no ID tag. The output tubes taper toward the wheels.

These are the numbers stamped on the yoke housing: line one D2SV4L88D... line two 3K2 8 5F3


On the main gear housing these numbers are stamped: 75... 8L2
...and the numbers 16753 form a small circle.

I need to do some repairs and would like to know what I have.

[speedbump]

There's not much to be told by the tag. If the rear housing cover is smooth half round, it's an early housing, pre, about 65'- '70. If it has a expanded slot for the ring gear, it's a later housing and considered stronger. All the 3rd members fit all the housings and the only real difference is the material it's made of grey iron or nodular. Carrier bearings are about the same, but some 31 spline axle ones have a bigger bearing than 28 spline axle. On pinion bearings, they are all the same except the datona nodular one which is really rare. On the axle bearing, if it's a ball bearing, they came in two sizes. The big one usually had 7/16 bolts holding the bearing retainer on as opposed to 3/8 on the smaller. The bolt pattern is also different, but I don't have the measurments right now. The other option is a tapered roller and you'll know it when you see it. There's a killer web site on the 9 inch if you google 9 inch ford. It'l tell you more than you ever wanted to know.