Believe me I am right there with you. However, when I cross reference the OEM gear set I see it is also installed in 1500s which have the 9.5" option. Ring and pinion part number: 84489155 for the 2019 Express 3500 3.42 gears fits these other trucks. 2018-2021 Chevrolet Express 4 Cyl 2.8L Diese...

Thank you for the reply. I will look around and see if I can find a decent 3500 axle with 4:10s. Regearing is expensive if you are paying for someone to do it. I can do it for $500 and it is not a big deal for me. I definitely will be getting a HP Tuner and perform the recommended updates to the 6L9...

I am working to regear my 2019 Express 3500 extended van. I am at 3.42 now and I need to go to 4.10s. I am installing a Timberline 4WD kit and Tim recommended 4.10s all around. I am having trouble sourcing the gears for this setup. Nothing specifically states which gears to get. I would prefer to ge...