Well I guess Tom might not be around anymore - he had a phone number too in prior posts I would try to give a call.

The only thing I worry about the "brand new extended" driveshaft is I wonder if it's made here in the USA or is a Chinese made shaft. I guess you could ask Cobra -

Either way when the day comes for me to do my Tcase chain, I'll be doing new flex discs, and center support bearing along with a new driveshaft (preferably extended) preventatively so it doesn't have to be done more than once.

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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