Well I have 8 months of factory warranty left and a 5/2013 build on my 2013 35D so I will bring the SIB and even though it's outside the production cutoff by a month I'm betting that it will need to be done - the shaft used in assembly could have been made a few months prior.

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2018 Ram 2500 6.7L Cummins 68RFE
19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed
2013 X5 35D (CEO's) - Born on 5/17/2013 -
82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards