On Jan 29, 2:19*pm, wrote:
So which one is it?

I scanned them all, and none mentions replacing the gas spring with an
aluminim bar. Technical Bulletin #6012 for the LS6 is about replacing
the gas strut with part # 4R2-111, which I believe is the
aforementioned aluminum bar. I won't name names, but at least two
people that I hold in high esteem have stated that they have done this
to other LS's.