I forgot to install a crush sleeve on my pinion 2 yrs ago - Hot Rod Forum : Hotrodders Bulletin Board
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Old 11-19-2009, 05:18 AM
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I forgot to install a crush sleeve on my pinion 2 yrs ago

I installed a new summit 373 ring and pinion on my 1990 k1500 4x4 chevy 2 years ago...I came across the box that it came in and realized the crush sleeves are still in there...have I done any damage..is that gonna shorten the lifespan of my ring and pinion?

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Old 11-19-2009, 06:03 AM
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How did you set your pinion bearing pre-load without the crush sleeve?
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Old 11-19-2009, 06:12 AM
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My guess - you used the old one and since CRS has a notable way of allowing minor gaps in memory retention for errors in judgment, your vehicle (among other things) has been able to survive this situation.

Basically - it ain't broke yet, so you had to have used something

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Old 11-19-2009, 06:58 AM
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How did you set the bearing preload? The crush spacer is used to put tension in the pinion shaft and load the nut so that everything is held in place the way it should be. If you left the spacer out then the shaft will not be under tension and the bearings can move around a little under load. This will shorten the pinion bearing life some. It might not ever give you any problems, but I'd still like to know how you set the bearing preload.

The installation kits that I sell have 2 spacers in them. Is there a chance that your kit had 2 spacers and you used one of them?
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Old 11-19-2009, 07:14 AM
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The bearings are seated in the housing and on the pinion shaft and cannot move around any. As stated the crush sleeve is for new bearing pre-load only. Once the pre-load is applied to the bearings that allows new bearings to be run-in and to establish a wear pattern for longevity. It does not affect clearances or gear pattern in any way. My guess is that you installed the old sleeve and have since forgot you did. At this time it's a mute point, I would not worry any further about it.

It is impossible to tell how long your rear axle will last without a new crush sleeve being installed, it may go 50K miles before the pinion bearings give up, or it may go 200K miles
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Old 11-19-2009, 12:03 PM
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You can set the preload without a Crush sleeve. Now keeping the preload might be a problem if it was left out.

Kinda hard to believe it would go 2 yrs without failing.If the crush sleeve was left out the nut would not be tight enough and probably would've come loose.

I would think about that real good. If for some reason you did leave it out,I would be getting one in there. Maybe you used the old one?
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