Hi, So here is a bit of info you may find interesting. Had the jacks down and wheels on the ground when a very windy storm came through. Both rear jacks had bent rods. Terrible screaming when I pulled them up and down. Ordered new jacks. Here is the catch, all of the GTs use the same jack for all positions. 8000 pound Aluminum units. Two issues:
1> 8,000# is right at the rear limit for each side. You BETTER NOT raise the wheels off of the ground. This is why they advise you not too. For $100 more/Jack retail FR could have used a 15,000# jack on the rear (even give this as an upgrade option). Also, they use a bolt on bracket but weld it (don't know if it matters but it is another weird one).
2> The differential in CTE between Aluminum and the steel bracket is high enough to cause the creaking if the 6 attachment bolts are not Locktite and torqued properly. Be very careful in using the rubber washer. Added flex could allow enough extra side motion to cause a bent rod.
2012 Georgetown 378XL
Toad 07 Lexus RX350