I have been searching the forums and net for the Main Bearing Torque Specs on a 2000 Grand Cherokee 4.0.
What I have found was 33lbs but the motor will not turn over even with using a 3ft cheater pipe. ( I think that is too tight, Tried setting 3 times now)
I just de-glazed the cylinder walls because I had 1 cracked piston skirt and 2 cracked pistons(This is common from what I have read). I am putting a new oil pump in as well. Cylinder walls were fine, I used the 3 stones to de-glaze(some refer it to honing but it's not). I'm Using the old bearings and crank, they are fine with no visual damage.
The 4.7L states 15lbs torque and then a 90 degree turn.
Here is the website for the torque on the 4.0L;
Here is the for 4.7;
Jeep 1999 4.7L Engine Torque Specifications
99-04 should be the same, Info on this would be much appreciated!