Page 1 of 1
1961 Differential Pinion Seal
Posted: Sat Mar 23, 2024 1:57 pm
by 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?
Re: 1961 Differential Pinion Seal
Posted: Sat Mar 23, 2024 2:14 pm
by PwrWgnDrvr
Take it out and look for the seal number stamped into it. Or, measure it up and find one the same dimensions.
Re: 1961 Differential Pinion Seal
Posted: Sat Mar 23, 2024 8:55 pm
by BigBlockTrucks
Snowdog wrote: ↑Sat Mar 23, 2024 1:57 pm
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.
Re: 1961 Differential Pinion Seal
Posted: Sat Mar 23, 2024 10:55 pm
by PwrWgnDrvr
BigBlockTrucks wrote: ↑Sat Mar 23, 2024 8:55 pm
Snowdog wrote: ↑Sat Mar 23, 2024 1:57 pm
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?
Re: 1961 Differential Pinion Seal
Posted: Sun Mar 24, 2024 6:03 am
by 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
Re: 1961 Differential Pinion Seal
Posted: Wed Mar 27, 2024 8:43 am
by Snowdog
Thank you everyone! All the help sure makes working on this thing a lot more enjoyable.