| They’re the Quality Q4P07 model by Challenger. I have a fairly tight space so it’s the smallest footprint fully featured ALI certified lift I could find. It has some nice features such as 7000# capacity, all the locking hardware is internal to the lift and columns and it locks every 4” of rise. Also has the center channel flange to roll wheeled accessories in the middle of the runways such as the bridge jack and oil drain pan. They also upgraded me to the 50" Aluminum ramps over the 36"... works great for lowered Zs. Highest ramp locking point is 63” clearance under the runways, the car underneath would have to be 60” or so max... no problem for Zs or roadsters. I have a low marked setting for 50" that the zeds barely clear and a 54" setting that I use for storage. Zs are 49.5" by my measurement with the tires I'm running. Full specs for it and its bigger brother Q4P09 here: Quality Q4P07 - Q4P09 brochure
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