fc170 Posted October 31, 2023 Share Posted October 31, 2023 Hello all, In pulling off the brake drum, to repair the lug bolt thread, I uncovered a leaking outer axle seal. Can anyone recommend a source for the seal as well as friction lining material for the brake shoes? The drums are 14". Thanks for your help, Greg Link to comment Share on other sites More sharing options...
BlueDevil Posted October 31, 2023 Share Posted October 31, 2023 Do you have a picture of the seal. I just replaced my 75 seals with CR19760 Link to comment Share on other sites More sharing options...
fc170 Posted October 31, 2023 Author Share Posted October 31, 2023 Here is what mine looks like. The seal looks to be JB welded in place. I assume there is a better way to do it. Do you know the dimensions of the CR19760 seal? Link to comment Share on other sites More sharing options...
Narve N Posted October 31, 2023 Share Posted October 31, 2023 I have had success with reusing the outer parts from an old seal and having a renewed inner seal in modern materials mounted inside to fit the axle dimension, made by a company specializing in this trade. Actually cost less than buying an very old aftermarket seal. Link to comment Share on other sites More sharing options...
pre1939chrysler Posted October 31, 2023 Share Posted October 31, 2023 It helps to use 600 wt oil in your rear and Trans too. Link to comment Share on other sites More sharing options...
Gunsmoke Posted October 31, 2023 Share Posted October 31, 2023 Pretty well covered everything. 600W oil (not 600 wt or weight) is equivalent to about 250-300 weight modern formulas. Install a vent in axle housing, quite a bit of pressure can get built up in a rear end during long drives causing oil mist to be expelled thru inner seals, affecting both the bearings and risking getting out to brake shoes. Assuming modern grease is used in wheel bearings, it is not likely to migrate much unless polluted by oil from rearend. Finally outer seal is as much as anything intended to prevent dust and road debris from getting into bearings, so does not have as demanding a role as inner seal. For my CD8 I reused old leather seals. Thoroughly checked them for wear, and that compression springs were still effective. Should be plenty good for the amount of miles our restored cars get. Link to comment Share on other sites More sharing options...
fc170 Posted November 1, 2023 Author Share Posted November 1, 2023 Thanks for the help. I was able to find a modern seal with the correct dimensions. The oil vent is a great idea. I will add one. Link to comment Share on other sites More sharing options...
Narve N Posted November 1, 2023 Share Posted November 1, 2023 Anyone having illustrations of an add-on vent for the rear axle? Link to comment Share on other sites More sharing options...
Gunsmoke Posted November 1, 2023 Share Posted November 1, 2023 Here is the standard vent I put on top of axle housing on 1931 Chrysler CD8. I think these are still available, I have a spare if you cannot find one locally. Link to comment Share on other sites More sharing options...
Narve N Posted November 1, 2023 Share Posted November 1, 2023 Appreciate the offer and will get back to you, generally is there any vendor selling these? Link to comment Share on other sites More sharing options...
1930 Kram66 Posted November 1, 2023 Share Posted November 1, 2023 This is another option..... Just drill a small hole ( 1/8 inch dia.) right through the centre of the upper most bolt that holds the diff housing cover in place, insert a split pin and that's it. Only downside is the need to occasionally wipe a little oil that weeps from the vent. 2 Link to comment Share on other sites More sharing options...
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