What type of bottom bracket on a 2005 Avalanche?

[ripper1]

Hi there,
I need to replace the bottom bracket on my 2005 Avalanche 2 hardtail. Its the 8 speed variety, does anyone know the type that I will need to get?
Many thanks if you can help

[blog hogs]

If it is a 2.0,it has a Truvativ power spline.

[ripper1]

Blog hogs, Thanks for info, but it seems there are several different sizes!!
Any idea which one?

[blog hogs]

Unfortunately it doesnt say.There will be a sticker on the center section.If it's trashed,the spindle will have a stamp stating the size on it.