I have a question on the engine mounts. Currently changing them and I just realized that while the torque for the bracket holding the insulator to the engine is easily found (27 ft lb), I cannot find torque specs for the single nuts in the center that hold the insulator to the top and bottom brackets. Can anyone help with this?

 

Please take a look at the link below...
https://www.clublexus.com/forums/ls-...006-ls430.html

 

I did, multiple times before I posted this. There is nothing about the single nuts for the top and bottom bolts that hold the insulator to the brackets. There is the torque specs for the upper and lower brackets and the transmission mount, but nothing about the top and bottom nuts for the insulator.

 

The rubber engine mount is referred to as "engine mounting insulator" in the repair manual. The mounting bolts (to the bracket and to the chassis) should be torqued to 50 ft.lbf.

 

Ah, I thought that was just for the bracket and didn't include the insulator. Thanks for the clarification! Can't wait to see how it runs, the driver side mount came out in two pieces.

 

Got everything replaced including the transmission mount, WOW what a difference. You cannot tell it's running when idling now, even in drive. Before there was some vibration through the steering wheel and seat and when coasting downhill it would feel like it was shuddering a little. Not anymore, butter smooth. Definitely worth the investment.