You are very correct. That is why I think it is always a good idea to convert a 489 to shims when you rebuild one. Earl My understanding is that if you have a 741 or 742 housing, you're cool. If you have a 489, you have to go through the same crush sleeve process that I am currently coing through. '65 Coronet 500 stroker -----Original Message----- From: Dennis C. <dennis.2914@xxxxxxxxx> To: 1962to1965mopars@xxxxxxxxxx Sent: Tue, 22 Apr 2008 11:17 pm Subject: 8 3/4 Pinion Seal Replacement? I just bought a 1965 complete 8 3/4 differential for my 63 SF. I want to change the pinion seal before I put it in the car. Is this as simple as pulling the U-Joint yoke, replacing the seal and replacing the yoke? I am concerned that pulling the yoke will change the pinion / ring gear setup. Any help would be appreciated. Dennis C. ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html. [Non-text portions of this message have been removed] ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html. ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.