2019 389 driveline vibration

Bent tube huh? Seems like a stretch but possible I suppose. Seen shed or missing weights before or unbalanced, but never excessive run out. Highly suggest checking axle angles especially with air trac suspension.

I would feel much more comfortable with locally built shafts built and balanced In house opossed to something packaged and shipped.....well you can imagine what a drive shaft has to go through to get from point A to point B truck freight.......just sayin. Not to mention downtime.

Good luck.

Keep us up to speed.

 

Dana has had some issues on the new shafts. These will be spl250lite. Slipshaft/ hanger bearing setup is new.
I had one with 60 thou runout.

 

So someone has fallen asleep at the driveshaft assembly machine. So much for quality control. I did hear that some changes were being made to the slip yokes and support bearing from our rep.

 

New shaft pic below.
They switched to an outboard slip shaft. Center u joint is held in place by c clips instead of bolts/ straps. Front shaft is very light. Rear shaft is heavier then a normal shaft and a bit of a bear to install. Slip shaft flops around and is keyed to only go on in phase.
The old u joint design seemed easier to service. Not sure how good c clips will be in 5+ years after they rust in.

Your truck should still be fine to drive. Vibration starts at 80km and is usually gone by 100 or 110km.
Wait times can be long on new shafts as they make them in a pair.
Once they are on, it will be like floating on a cloud!!

 

I too see potential issues with the oddball cap retention. I would have rather seen it full round with the bolts on cap retainers for at least some uniformity. This really auta throw a wrench in the plan when it comes to tow companies pulling driveshafts. They will still likely cut the clamps and yank it apart.

I see non replaceable u- joints like automotive uses in our not to distant future.

 

The rest off the world allready has those.