Does anyone know what the Timken bearing and race numbers are for the differential are? Carrier and Pinion.
Thanks

 

yOU NEED TO TELL US THE YEAR OF THE REAR? AND IF IT IS INTEGRAL HOUsing rear 1965-1971 or the earlier gasser 9.3 drop out third member like a 9 ford?
IF it is a 9.3 drop out from 1957 -1964 we need the case casting number to tell you the bearings.

Jim
JD Race

 

these are the 2 you could have 9.3 rear GM

 

1961 88 as you have for your avatar isCarrier Bearing 25584 X2

Carrier Bearing (Race) 25520 X2

Inner Pinion Bearing 1957-63 M804846

Inner Pinion Race 1957-63 M804810
Outer Pinion Bearing 1957-63 HM89446

Outer Pinion Race 1957-63 HM89410
Pinion Seal 1957-62 19310 SKF

found at:
link - http://www.jdrace.com/content/diff_i...iacDropout.php

Jim
JD Race

 

the other integral housing is linked below too.

http://www.jdrace.com/content/diff_id/12b93Olds.php

 

I just bought a rear out of a 62 Starfire 3:42 gears and want to put a posi in it. The third member looks just like the picture.
Thanks for the info

 

Do you sell posi units?

 

Yes, I sell Eaton posi and bearing kits the gears still come from FAB CRAFT they have a corner on the market...
Jim Mitschke
JD race

 

Whats the difference between your posi and fabcraft?

 

Mine is clutch Eaton style and Fabcraft is Auburn cone unit. My units can be used with 2.69 - 6.14 gears one carrier does everything the shims are on the carrier bearings to move it left and right to make the carrier 2 or 3 series. Mine is rebuild-able down the road - Cone type rear when it is done is junk. NOW how long it takes you to wear one out...??? well you could be dead by then as long as your not circle tracing the car... Jim

 

Not mine but someone here in Cali is selling these 9.3 pumpkins. It might make sense to pick up a spare.

Pontiac / Olds 9.3 drop out pumpkins

 

I wish I was on that side of the country with a 14 foot panel truck for a month...lol

 

I got the POSI installed boy what a difference the 3.42s make.
Thanks MONZAZ

 

What did you go from? if it was 2.xx ratio......... YAH it should feel like a bullet out of the hole now.

 

I had 2.87 gears before

 

Now you need some BIG rear tires ! ! !