Correct. He just wrote it up here so we don't have to go to that other siteAndy, is this a repost from GMT from last year? I had thought you installed a servo before the tune last fall?

Correct. He just wrote it up here so we don't have to go to that other siteAndy, is this a repost from GMT from last year? I had thought you installed a servo before the tune last fall?

Andy, is this a repost from GMT from last year? I had thought you installed a servo before the tune last fall?

You have a 4L60E, so yes that's what you need.Bump*
Not really sure what kind of transmission i have in my 03 Sierra 5.3 automatic and is this the thing i should be purchasing for the mod?
http://www.oregonperformancetransmi...&Product_Code=NTP-K51828C&Category_Code=4L60E
Did you order one? I'm hoping mine makes it here for the weekend.