Mystery part in rear end assembly

[flyboy1294]

Hey guys,
I'm installing my new axle in my 400 today. Upon disassembly, I discovered a metal shim. About 1/4" in width and >3" in diameter. I looked on the stock schematic for it and only for a part that was listed as "O-ring". The harder I look at this shim, the more convinced I am that it is home-made.

Does anyone that has torn the back-end apart recently recognize it?

(I apologize for the terrible pictures)
http://i82.photobucket.com/albums/j245/jerry42633/101_0435.jpg
http://i82.photobucket.com/albums/j245/jerry42633/101_0437.jpg

Thanks in advance
/Jake

[NacsMXer]

Was it next to the groove in the axle in the bottom picture? Near the axle nut?

[flyboy1294]

Originally posted by NacsMXer
Was it next to the groove in the axle in the bottom picture? Near the axle nut?

No, it was between the brake hub and the carrier. It isn't visible when in the original position.

[steve181]

Never seen that before

[johnnynonails]

wonder if its a spacer for the brake hub

[NacsMXer]

Originally posted by johnnynonails
wonder if its a spacer for the brake hub

x2.

Looks like someone made that spacer trying to get the right alignment for the brake rotor. It definitely isn't in there stock.

[flyboy1294]

Originally posted by NacsMXer
x2.

Looks like someone made that spacer trying to get the right alignment for the brake rotor. It definitely isn't in there stock.

That is what I'm thinking. It doesn't look like OEM grade material or craftsmanship.

I should not assemble it with the spacer in, right?

[johnnynonails]

you might find u need it,to aline the rotor.u could try it with out,but just spin the rear end to test it,dont ride it.i think u'll need it tbh.john

[rippin416]

It wasnt the dust seal for your carrier bearings was it?