Electric Sissor Jack mod-18" lift achieved (pics)

I like the jack except the need for a piece of wood under the jack to accomplish a rear lift. 17" works for a front lift, but comes up a little short for the rear.

I made a 1" extention that slips on the lift pad of the jack. It consists of a 2" PVC coupling, costing 67 cents at Lowes, a piece of 1"x 6" Trex deck plank that I had laying about and 2 #6 x 1" sheet metal screws.

Cut the coupling square at 1-5/8" with a hack saw. The O.D. of the lift pad is 2-1/2", the I.D. of the coupling is 2-3/8", so half of the interior of the coupling needs to be removed 1/16" all the way around. I used a drill with a 60 grit sand paper wheel. It was not that hard. There is also a rib in the coupling that needs to be filed down. I used a 2-1/2" hole saw to make the new extention pad from the Trex deck plank (tuff stuff). Place the pad flush into the non-filed end and secure with 2 #6 x 1" screws.

The Trex pad is a little loose in the coupling so I wraped it with a couple layers of electrical tape to make it snug.

Made a lift today and it worked great. Bearing weight is all on the Trex pad, the coupling only pushes snugly onto the jack cap.

There is plenty of room in the carry case to store the extention........

Is the lift pad of the jack round? I guess when I get my jack this coming Wednesday I will understand the whole thing better. But, in any case your extension sounds like a great idea. From what I understood, the most difficult part is to find a Trex deck plank.

Yes, the lift cap of the jack is circular, measuring 2-1/2" across or O.D. (outside diameter)

I had the Trex plank handy, I'm sure any sturdy material would work including a wood peice without any seams that may split over time.......

Great idea but I think I would have tried to emulate the cross pattern that the jack has so that there is a channel for the vehicle to lock into.

Nice and handy lil gadget.

certainly smaller than a 2x6