I don't wanna rush the install of this, I know the current stuff is good and I'll be not pushing the pedal much anyway maybe 8-16 times per trip..
Well after reading I have found out I either need the AA bellhousing or I am drilling the face of the nv4500 with the Saginaw bolt pattern.. anyone know how deep is too deep to drill?
These also need super secret squirrel gear lube
It's listed in my build thread somewhere
I was reading about that, sounds like there is this??
I can still get this locally and it's reasonable price.
http://www.amsoil.com/shop/by-produ...-transmission-and-transaxle-gear-lube-75w-90/
I'll check it out.I ended up only having one local option compatible with GM 12346190, and it was a Valvoline product. It wasn't crazy expensive, either. Again, see my thread if you want the part number.

Not sure. All I've heard is the nv4500 pretty picky about the sauce it runs. Some of the other 4500 users may be able to chime in on the amsoil use.
Personally I don't buy into the amsoil hype. Got into a pretty heated debate with a customer telling me amsoil said he could run 20,000 miles on an an oil change. He could not seem to understand why is oil pressure was running low at idle and turning on the idiot light. Hmm, might be the 20,000 miles worth of garbage in his oil filter that might have a 1/2 quart capacity at best. So it was bypassing and clogged up the little screen below the oil pressure sensor. This was on a 5.3 with cylinder deactivation. He came back later to advise that amsoil published a new bulletin stating the oil is good for 20k, but to change the filter every 10k. Hmm I wonder why they said that.... I have no doubt the oil is good stuff, but the bs they spew to sell it just makes me skeptical.
I can't find a 4500 to save my life.