I have viewed a video of the RennStands being used to lift all four corners. Obviously you need (4) RennStands. You place the cross support of the RennStand on the lift plate of the floor jack (the Tesla adapter needs to be installed on the cross support), then raise the vehicle at one of the lift points. Then you attach the legs of the RennStand and secure the legs of the RennStand using the locking pins. Finally you lower the floor jack and the vehicle stays supported on the RennStand. Repeat for the other three lift points. In practice you would probably only need a pair of RennStands at the most to service the wheels, brakes etc. (You would need a Tesla/Porche adapter plate for each of the RennStands and a low profile floor jack that can fit between the legs of the RennStand. (What I learned: Renn is German for Racing.)RennStand certainly seems like the best option I have seen so far....much cheaper than JackPoints.
I do have one question: Has anyone attempted to lift all four corners of the car using one of these products? It seems to me that, no matter the sequence, at some point there will be three corners of the car off the ground, and one unsupported. It seems this would put an extraordinary torque on the frame (and battery case). I suppose one could use two floor jacks to evenly lift the both front or both back corners at once.
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