looking throught the sched service log book, says to lube front 4x4 shaft. looked under truck on u jounts did not see a **** thing any ideas what they are talking about all of the stufff they list i just change the oil but the other thing on the list not sure what to do, i mean i want to do it i just dont know how can anyone please help? kinda worried after reading about that guy with the problems "paid 42k for this" thanks

 

read this thread. the location is back by the transfer case on the front driveshaft

https://www.dieseltruckresource.com/...ive+shaft+lube