Doing the TB job in its entirety. Used a chain wrench, some serious 'engineering', and a heavy duty torque wrench and the crank nut came off at about 180lbs of tq I'd guess, wasn't hard, did it with no help.
However, I locked the cam pulleys from movement and put some serious torque on the nuts without any success. There is no specific directions for this that I can find in the write-up or searching here or the LS4 forum. I need to replace those cam seals and resync the timing to make sure everything is good before taking it farther apart to replace the tensioners, idle pulleys, and WP.

Thanks for any assistance, looking foward to getting this damn thing on the road.

 

Anyone know who I could at least contact that may have done it before? Thanks guys.

 

I think you need to download the Lexus service manual for your car. A one day subscription is like $5. Do a google search and you'll find it. Or use the forum search function.

 

A member of another board photocopied a few pages out of the manual, I was attempting it the right way, no odd tricks.

FYI, I searched thoroughly, and always do.