1961 Differential Pinion Seal

[Snowdog]

I've searched the forums, and the parts people have searched their reference books, and we can't find a seal for the diff on my 61' D100. It's the good ol' 8 3/4". Can anyone point me in the right direction?

[PwrWgnDrvr]

Take it out and look for the seal number stamped into it. Or, measure it up and find one the same dimensions.

[BigBlockTrucks]

I've searched the forums, and the parts people have searched their reference books, and we can't find a seal for the diff on my 61' D100. It's the good ol' 8 3/4". Can anyone point me in the right direction?

What are the casting numbers on the center section?
741,389,742 ? The seals are still available.

[PwrWgnDrvr]

I've searched the forums, and the parts people have searched their reference books, and we can't find a seal for the diff on my 61' D100. It's the good ol' 8 3/4". Can anyone point me in the right direction?

What are the casting numbers on the center section?
741,389,742 ? The seals are still available.

Are the pumpkins the same on the early tapered axle housings as the later housings?

[jeffc57]

657 is the standard in the 61 year, ID by the last 3 numbers on the case. This is the stock 3rd member and the seals should be available
https://imageevent.com/jeffc/techstuff/ ... =4&s=0&z=2
https://imageevent.com/jeffc/techstuff/ ... =1&z=2&l=0

[Snowdog]

Thank you everyone! All the help sure makes working on this thing a lot more enjoyable.