mikeyss
Full Access Member
Are all 6L80's built the same between the 5.3 and the 6.2? I remember in the 2000's the 4L60 was behind the 4.3, 4.8, and the 5.3, the 4L65 was behind the 6.0, and the TBSS had the 4L70. The 4L60 mated to the 4.3 had less clutch packs then the 4L60 mated to the 5.3. I wonder if there is any additional beefing up of a 6L80 mated to the 6.2 since it has an additional 60-70lb/ft of torque going to it. GM put the 9.5" axle because of the additional torque, so wouldn't the tranny be a little more beefed up?