Knock under TJ

[06TJ]

Hi Guys. Has anybody experienced a knock comming from the gearbox/transfer case area? I have a 2006 TJ 6 speed. The knock is typically in 1st, 2nd or 3rd gear. My driveway is a steep climb, and in 1st geat the knock becomes a violent shudder thru the gear stick and whole car. When it is in lowrange however ther is no sign of it?

[bally12]

Gearbox or engine mounts. There are plenty of threads with this general description of a knock, clunk or shudder. Search through the first 3-4 pages of this section of the forum. Ul find plenty

[06TJ]

I had a look. All the engine/body mounts are secure. Thinking maybe bearings in the gearbox or transfer case? Anyone had problems with these before? The jeep has 80k on the dial, and i get into it a bit!

[stroked]

Originally Posted by 06TJ

I had a look. All the engine/body mounts are secure. Thinking maybe bearings in the gearbox or transfer case? Anyone had problems with these before? The jeep has 80k on the dial, and i get into it a bit!

pretty sure it would be the stock engine mounts, when i pulled mine out they were destroyed... i also have a steep driveway

[bally12]

if its more of a cracking sound it could also be a driveshaft uni joint on its way out, mine would sound like it was going to crack wide open when i got into it. when driving in 1-3 it would squeek and shudder as well. best way i found to check is to just ive it a good solid shake and if there is play in the uni its buggered.

[JoeJeep]

I had a lot of shuddering coming from the drive live in my work ute which ended up being a driveshaft uni, like bally12 said give it a bloody good shake

[Will239]

another thing to check is the transfer case linkage.

mine has devloped a similar problem and im fairly sure this could be it.