Over a couple days I completed some much needed repairs and maintenance.
Mileage was at 139200.
I completely flushed the power steering with Valvoline Maxlife ATF. I greased both driveshafts and UCA’s. Checked fluid levels in the T-case and rear diff. Removed the roller bearing in the diff. Felt like it had a lot of play but wasn’t broken. Installed an ECGS solid bushing. A torn CV boot turned into a CV replacement. One of the bearings fell off the tripod upon removal. Stretched the inner boot.
Lowered the Bilstein 5100’s from 1.75” down to .85”. Wish I would have done this months ago.
After all that I found both 4hi green light and Diff lock yellow light flashing and wouldn’t engage the front diff. Pulled the A.D.D, soldered the motor and micro switch connections.
Write-up
No 4WD 4hi and center lock flashing