I had them do it so I got the Mopar warranty
Took a drive on the highway...Jeep does have 1:1 in the transmission. Note that this is including only the ratio between transmission input and output shafts.
With the transmission not in one of the OD gears (for the automatic, change to manual mode and keep it in 6th gear as 7th and 8th are overdrive gear.
For the manual transmission, 1:1 or high gear, or direct is 4th gear.
If you are in 5th or 6th in the manual, it's no longer 1:1
If you let the automatic shift beyond 6th, then it's no longer 1:1
JT stock differential ratios are either 3.73:1 (Overland, for example) or 4.10:1 (Rubicon, Max Tow, Mojave, etc.)
Back on Chad's correction of me - I still find it odd as with any transmission, manual, automatic, whatever, the easiest of all ratios to achieve is 1:1. You lock the input and output shafts together, all other ratios require other gear sets or a more complex cluster, for automatics, it's an added planetary set and clutch pack or band.
Piece of cake - slide that collar shown in the right of the pic forward, locks the input shaft (on the right) to the output shaft (on the left) and you have 1:1, or high, direct gear.
Shifting into 4wd does not change the vibration or its intensity. I am unsure if the dealer has messed with that.
Yes, though the nvh readings say it's 100% isn't suspension related.
Test drive a diesel if you get the chance.
Good luck with a lemon law claim...my Jeep sat in the shop for over 40 days and met all of the criteria for a lemon law claim in Tennessee. Got it back with no resolution and told Jeep customer service I wanted to file for lemon law. Two days later she called me and said my claim was denied. No reason given, no explanantion and the lemon law "people" whoever they are, refused to speak to me or give me a reason for denial, which is illegal, but obviously they don't care about legality. They told me if I want a reason, I need to get an attorney, which seems a little bit much just to get a simple answer.
What is a STAR case?
A star case is when technicians at JEEP help technicians at the local dealer.
Oh ok. Yeah I experienced that. My dealer called in two different jeep "engineers"...neither of them knew their asses from last Tuesday. The second one, claimed my Jeep is not bouncing at all and rides perfectly normal, even though it has bounced every single day for over 15 months including the day I dropped off the jeep and picked it up from the dealership. I requested to speak to the "engineer" and was told I can't talk to him.
For the most part they communicate via email and typically respond within 72 hours. It's a really bad business model if you ask me. Where have all the technicians gone???
