How to identify a BE heat treated rear

[John]

I believe there was a discussion on how to identify a copo heat treated 4 series carrier in a copo rear end... but I cannot find it...
...any help is appreciated... <<GRAEMLIN_URL>>/beers.gif

[COPO CARTEL]

John. The part number on the flange last 3 digits are 234

[Stefano]

Regarding the &quot;heat treatment&quot; I believe that was only for the Ring and Pinion, not the carrier.

While the carrier was different and some special parts were used, I don't recall anything other than the Ring and Pinion getting anything special heat treatment wise.

[bergy]

&quot;BE&quot; 4.10 parts

[John]

Thanks guys .... that helps a lot <<GRAEMLIN_URL>>/beers.gif

[m22mike]

For future searches, here are all the BE KQ goodies that allot of the BE's are lacking.
The carrier is a standard 4 series and is machined differently inside.

http://www.yenko.net/ubbthreads/pics/usergals/2015/06/full-2974-27029-dscf3062.jpg
http://www.yenko.net/ubbthreads/pics/usergals/2015/06/full-2974-27030-dscf3051.jpg
http://www.yenko.net/ubbthreads/pics/usergals/2015/06/full-2974-27031-dscf5085.jpg

[earntaz]

Good stuff Mike -- wouldn't expect anything different from an aircraft maintainer! TAZ