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Mark Salvetti Mark Salvetti is online now
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Join Date: Sep 2007
Location: Boston, MA
Posts: 1,509
Quote:
Originally Posted by tirwin View Post
Another idea I think someone else mentioned is to build 2x12 ramps to put the QJ on to gain a little more height.

The QJ comes with 2 sets of rubber blocks. The short ones are 2-1/8” tall and the taller ones are 3” tall. They say you can stack them to get extra height — I need to convince myself that’s a good idea. They also make a set of SUV adapters that are taller. I have not looked at them closely to see if they would work with the 911’s lift points.
I'm the guy that uses 2x12's under the QJ for our taller cars.

I've tried stacking the blocks but I just can't get comfortable doing it. For folks that don't have a QJ, it doesn't lift straight up. As the car rises it also moves forward or backward, depending on the direction of the QJ. As this happens I've found the stacked blocks can start to lean over, and I've always stopped the lift.

I often use the QJ in the driveway, which has a slope equal to the max allowable (about 7%). This makes the lean problem even worse.

In my opinion, the 2x12's are much safer. The only drawback is they can be difficult to position. Because of the total weight of the QJ, the wood tends to dig into the asphalt and it is very difficult to slide. I even have handles on them, but still a nuisance. I have an idea for retractable wheels for the 2x12's, but I haven't had time to weld them up and see how they work.

Mark
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1979 911SC Targa

Last edited by Mark Salvetti; 09-20-2017 at 05:31 PM..
Old 09-20-2017, 05:27 PM
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