Chrysler Repair Questions? Ask a Mechanic for Answers ASAP
the big problem with the rear PTU is it has NO service parts available and if it refuses to operate it must be replaced, you should have a claim against Mr. Lube as long as you still have the receipt with the type of fluid installed on it, and like our favorite in Connecticut "jiffy lube" the company should have a insurance company that deals with their screw ups
go for them first I can provide the specs for the needed fluids for you if you want or they may be in the owners manual, the rear differential module has 2 fluid sumps and takes BOTH ATF+4 trans fluid in one sump and 75W90 in the other the 2 must never mix or damage will result here is a description of how the rear module works.
one would hope the lube tech noticed the difference between the 2 as they are definitely very different in color odor and viscosity, but that may be why they are still lube techs
The rear driveline module assembly (Driveline Module Section) consists of three main components:
The viscous coupling and bi-directional overrunning clutch are contained within an overrunning clutch housing, which fastens to the differential assembly. The overrunning clutch housing and differential assembly have unique fluid sumps, each requiring their own type and capacity of fluid. The overrunning clutch housing requires Mopar® ATF+4. The differential assembly requires Mopar® 75W-90 Gear and Axle Lubricant.
Driveline module service is limited to the following components: