Hunner wrote:It was my understanding that the Alpha had different ones (longer) than others with aluminum diffs, maybe the same as that 09. I found when I was looking for steering racks and such that when something new or changed came out, it was awhile before the books or online Hummer parts even at the dealer showed the new part number as a replacement. The front locker was like that for a long time after they came out that was not a parted out list for it alone. I wonder if the 09 is even different because of the front locker? F5 might can shed some light on that issue. Keep us posted.
Hunner wrote:How much were you selling them for??
4speedfunk wrote:I know a guy with a 2008 Alpha, that had the retaining snap-ring fail (while cruising on the street). The half-shaft slipped out far enough to clear the splines, and caused him to be stranded. Not sure if it screwed anything up. The dealer replaced the half-shaft and all was well. Maybe thats the reason for the slightly longer length?
f5fstop wrote:Part Number history of shaft...
Manufacturing part number was originally 10374204 for start of production. Then went to 15905106 on September 1, 2006. When the Alpha was released the service part number went to the current number 15886012 and has not changed since. No explanation as to why, but I will assume it was either for the Alpha that will service all as I explained earlier.
phazer42 wrote:PN 10374204 was changed due to an insertion issue that would sometimes arise into the differential. It was supposed to break point sometime around January 2006 to PN 15905106
The PN 15905106 was changed to PN 15886012 with an implementation of November 2006. This change was to increase the shaft bar length to 341mm and increase the shaft diameter between the boots to 28.6mm. The inboard joint also changed (was increased) due to off-road warranty issues.
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