ROKTAXI wrote:
Bumping my post from a different section of LOST, as well as from GDE forum.
On Jan. 10, 2017 I took the Jeep to a long-time, reputable TC builder (Accerated Torque Converters) here in Grand Junction CO. He drove the Jeep and was pretty sure it wasn't the TC or the transmission making the vibration / droning noise. He suggested I take it to a driveline specialist which I did and he noted excessive lateral movement in the RF CV axle. Turns out that the replacement of that shaft I did a few months ago was not the correct part as it was for a gasser. They installed a new (correct) one along with a new inner axle shaft. Still no change in the vibration issue. They have no clue at this point of what to do.
NOTE: Yes, each drive shaft was removed to verify that it wasn't coming from being unbalanced.
Is it possible that the turbo would behave this way? I've run out of possibilities. VERY frustrating!! -
This was my post from a while back.
I happened to come across info regarding the exact vibration issue but it was on a lifted XJ. Hmmmm ......... could this be related to my vibration issue?? After much conversation with the XJ people, I decided to try the (cheap) fix-it remedy for the XJ ... which is dropping the transfer case down an inch. Oh and I did forget to mention on my previous post that my KJ has the ~2" OME lift kit. Anyway, dropped the TC down and BINGO! No more vibration at the offending speeds.
Although this is just a band-aide, I plan on doing the double-cardan U-joints with a hack 'n tap slip yoke eliminator kit (for the 27 spline output shaft). I'm also going to explore the feasibility of clocking the rear diff to reduce the driveline angle. However, it think that's pretty iffy from what it looks like.
edit: I forgot to mention that getting the 2 longer bolts was not an easy find. Had to be ordered as not even specialty bolt companies didn't have them in stock. Caterpillar ordered them for me but were only $2.xx each.