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By easyissy - 13 Years Ago
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I'm trying to fix a leak I have on my 9" rear end. I'm trying to replace the
pinion seal but it seems I need some special slide hammer tool to remove it.
Is there any way to remove the seal without this special tool?
I also noticed some wear on the area where the seal contacts. Should this
piece be replaced to remedy my leak as well?
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By Hoosier Hurricane - 13 Years Ago
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If you have the original rear in your '58, the OD of the seal is around 4". You should be able to punch a hole through it near its OD with a sharp punch, then pry it out. Be advised that a new seal may require some searching, and be prepared to spend somewhere around $40 when you find it. The groove on the yoke, if not very deep, could be polished some and probably seal. If not, a "speed-e sleeve" could be used to repair it.
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By easyissy - 13 Years Ago
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Thanks for the reply. I'll try your suggestion. Here's some photo of what I'm working with.
The old seal:
The new seal:
The wear area:
That shiny grove at the right of the photo is what I'm worried about. In some areas it's not very deep
but in some you can feel it with your finger. I don't want the put the new seal on and still have a leak.
You're right about that seal, wasn't cheap for sure. 
I was also thinking about cutting the seal out with a Dremel but I don't want to cut into anything behind the seal accidently.
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By Hoosier Hurricane - 13 Years Ago
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That is not the '58 pinion bearing support, it is a later one. It appears you have the correct seal. You can lay that support across a couple 2x4s face down and drive the bearing and seal out from the back with a large punch and a hammer. The yoke looks like it needs a speed-e sleeve to properly fix it. Measure the diameter of the yoke and talk to your local bearing supply house.
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By 54mercury312 - 13 Years Ago
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Easyissy, If your not familiar with a speedy-sleeve, heres what they look like, in attached photo. It would be taped over worn area of the yolk surface. Some come in a kit with a tool to tap this sleeve on, as they fit very snug. Regards,  1954 Mercury 312
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By easyissy - 13 Years Ago
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Thanks for the info. I just went to my local O'Reily's and asked for a '58 pinion seal and that's what I got. I thought banging on the bearing like that might damage it. Theres also a bearing race on the other side that I don't want to damage.
So I can just go a round the edge of the bearing with a punch to push out the seal? Or will this damage it?
Thanks for all the help.
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By charliemccraney - 13 Years Ago
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On some things, you can put a shim behind the seal to position the lip over an ungrooved area.
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By easyissy - 13 Years Ago
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Finally was able to install the pinion seal. I just pounded out the bearing and seal from the rear as suggested. I guess all that oil helped it slide right out. Now I'm just waiting on my speedi-sleeve that I ordered. Thanks for all the help!
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