New 12 bolt 3 series Eaton posi units are back -

495.00 for Classic Oldsmobile.com members

shipping will depend on distance from 44286

Thanks, Jim
J D
330 990 8155 or PM me

 

Jim,

Can you clarify which gears these are for? I know the Richmond gears are a different series than the factory Olds gears and I wanted clarification on exactly which ones fit these diffs.

 

3.08 3.23 GM gears
AND
Richmond 3.42 and 3.90 gears

WILL NOT fit 3.42 3.90 4.30 GM original gears.

Jim Mitschke
J D Race

 

Jim are these 28 spline or 31 ? 8.8 Ford conversions I assume so does it need the 45/90 degree spline axles like a 71-72 8.5 or the 30/60 degree 28 splines like 70 and older type O ?

 

These are 28 spline. We have not had any slop issues with the splines on the side gear to axle fitment. These are the 8.8 ford units Yukon Eaton.

We have only one 8.8 31 spline unit left on the shelf. Standard 's' spring trac lock unit.

J D
Jim

 

Can this directly replace the open carrier in a 1969 O-type Olds rear (12-bolt cover)? Will this accept the stock Olds axles from same?