Installed PML diff cover with Redline oil & smoother?

[o2man98]

Originally Posted by tomp

RP may make Syn tranny, but my 06 requires Dextron VI fluid and no syn company makes syn to meet the requirements of it yet.

Dex VI comes in all 2006+ vehicles with Hydramatic transmissions. GM also recommends using the VI in all vehicles that call for Dex III.

AMSOIL has their full synthetic ATF that meets Dex VI requirements. http://www.modernoils.com/ATF_Amsoil...hetic_ATF.html