I see no numbers and its being held on by 10 bolts on the yolk side not on the outside like most rear ends.

Just looking for an idea on what size rear end it is......

1960 Oldsmobile Dynamic 88 wagon
372? Big Block Auto

 

When you look at the yolk side, at the seven o'clock position (near the bolts)there is a single digit number and that is the code for the ratio which you will present to us later and we will devulge the secret code!!!

 

Not sure if this helps any but i didnt see or feel anything around the 7 oclock position but at the 9 oclock i found 2 sets of numbers...

A2900 and below that was 535200

 

Its a drop out style 10 bolt i think 1956 to 1963 bop.
it looks like a 9 inch ford rear but a little bigger.parts are out there.

 

This is what they call the old GASSER rear.

IT has 10 bolt holding the pig in...BUT it is a 12 bolt rear and very strong rear.

POSI units are NOT available in the aftermarket - only what is out there from GM

They do sell FULL SPOOL units and gear sets.

Best to ask FAbcraft metal works in Texas he has the parts for these rears.

Different years had different axle spline counts also. I think your 1960 is in the good year zone of 31 spline and is pretty desireable drop out if you have a POSI .

Jim

 

Are you almost positive i have that rear end or will we only know for certain when i try and get the other numbers at 7 oclock?
I dont need any parts, i just want to know if this is a really strong rear end or not, im running this rear end in a demolition derby car.

 

MAn that is too bad to here as you would probably get as much for the rear as you paid for the whole car...

IT IS STRONG!

IS it anti spin posi in there?

What a shame.

Well if there is anything left when your done please call me with the parts left over... really...

330 659 7117
Jim

 

Well its just an old rear end i have, i have no clue what it is. I have no clue if its anti spin posi, its still under the old rusted out 60 wagon, but everything works as the car is a roller.
How much is the rear end worth?? I plan on selling it if i can get a nice 14bolt rear end or something with 4:11 or 4:56 gears already.

 

HAve one of those laying in the yard here 3.73

take it ...lol. Jim

 

For that year it is a 9.25" drop out rear end. They were 31 spline axles from I think 57 or 58 on. I know olds and caddies got them I'm not sure about the pontiacs and buicks... They are strong as hell a guy I know used to run them on the strip

 

I would if you had 4:56 in it... Find me one with posi and we have a deal
Need it for leafs...