oblivionnewtonjohn
Full Access Member
My KJ has a more noticeable "thunk" in the drive-train post suspension update, when placing into gear, more so when it goes from 3rd-4th if I give it more throttle, hard jolt. It's always done this since I purchased, but more pronounced since the suspension update. I just assumed at the time before updating the suspension, it was due to the upper and rear control arms being bad, allowing the axle to move more than usual. I have new Spicer u joints to install today, I did a pre-inspection and do not notice any movement with the shaft/joints as I would expect. I am aware of the 45RFE in some cases, requiring a flash of the TCM to correct hard shifting. But as I said, the suspension work seems to have introduced it more, I did have the differential jacked during the work, curious if I put stress on the joints, possibly failing joints, which made the issue worse?
The other oddity is I seem to hear it lightly in the front also, but more so when putting it into gear.
The other oddity is I seem to hear it lightly in the front also, but more so when putting it into gear.