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Questions on pinion seal replacement
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<blockquote data-quote="caveeagle" data-source="post: 12032878" data-attributes="member: 128063"><p>The pinion seal on my '04 cobra started leaking at about 12k miles. It was fixed under warrantly and I would bet you they did not tear down and reset the pinion depth / crush sleeve. For some reason, I did not think to ask them at the time. I just figured it it stopped leaking and didn't make noise, I should be fine.</p><p></p><p>I had it apart a few months ago to fix a leaking rear cover. (@89k miles) I looked at the wear pattern on the gears. It was wearing a bit towards the outside of the ring gear, but I am not getting any unusually loud rear-end noise, so... back together it went.</p><p></p><p>Also, there is a torque level needed to crush the sleeve. I have never rebuilt an 8.8, but i have worked on 8" and 9" before. Some recommend setting the pinion preload without the seal in place. Then you get a better estimate of the pre-load. Then you go back and just re-torque the nut with the seal in place. In theory, the torque spec needed for the nut alone should not crush the sleeve. (not totally sure if this applies directly to an 8.8)</p></blockquote><p></p>
[QUOTE="caveeagle, post: 12032878, member: 128063"] The pinion seal on my '04 cobra started leaking at about 12k miles. It was fixed under warrantly and I would bet you they did not tear down and reset the pinion depth / crush sleeve. For some reason, I did not think to ask them at the time. I just figured it it stopped leaking and didn't make noise, I should be fine. I had it apart a few months ago to fix a leaking rear cover. (@89k miles) I looked at the wear pattern on the gears. It was wearing a bit towards the outside of the ring gear, but I am not getting any unusually loud rear-end noise, so... back together it went. Also, there is a torque level needed to crush the sleeve. I have never rebuilt an 8.8, but i have worked on 8" and 9" before. Some recommend setting the pinion preload without the seal in place. Then you get a better estimate of the pre-load. Then you go back and just re-torque the nut with the seal in place. In theory, the torque spec needed for the nut alone should not crush the sleeve. (not totally sure if this applies directly to an 8.8) [/QUOTE]
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