Ford 10.25 sterling shim question

[BGF]

I have a 87 ford 10.25 sterling rear diff and the shims on both sides of the carrier are starting to slide out. I feel that the gears are properly installed and I'm not seeing excessive wear or heat. Is this common? Are there any good methods to keep the shims from sliding out?

[welndmn]

If the shims are walking out, it may not have enough carrier bearing preload.

[rabidranger]

Don't the shims go under the bearing? How could they be sliding out? Been awhile since I had mine apart...

[TFTBronco]

no its a ford 10.25 the shims go between the race and the axle tube area.

[D60]

I've seen this happen too. I just chocked it up to 10.25's suck

It's difficult to get enough carrier bearing preload, IIRC the 10.25s don't accept a case spreader.