For this part, I used round tubing. The round tube that you can see is 3". Inside the 3" tube is a piece of 2 1/2" tube. I welded it to the 3" piece of seamless tube and added some gussets which also were used to mount the top of the jack as you can see. I then used 8" sprockets from Princess Auto and welded one of them to the end of the 3" tube. I then drilled 4 holes in that sprocket that would allow 5/8" bolts to go through. When the bolts are not in place, the 2 1/2" piece will rotate inside the 3" piece.
On the other side, I used 2 1/2" round tube and welded it to a piece of 2 1/2" tubing that would slide over the 2 foot part of the T-bar. I then welded the sprocket to the round tube and inserted the 2 1/2" piece into the 3" piece. I then welded on 8 nuts so that I wouldn't have to fight with them when locking into place.
I made some pretty simple brackets to mount to the car. I used a 9" long piece of 2 1/2" tube to slide over the T-bar. I then welded a 6" piece of 2" 90 degrees to the other piece and put in some gussets. I drilled a 5/8" hole so I could use the body mount holes and bolts. The nice thing about this is the brackets will slide along the T-bar for easy adjusment to fit any car. All you need to do is figure out where it needs to go, drill some holes and bolt it into place.
For the back, I mounted it to the bumper mount. I used the same design as the front, except I used 2 1/2" tube for both pieces. This way I could weld a piece of 2" to a steel plate with some holes in it and attach it to the bumper mounts. Again this is so I can use it on any car. This picture actually has three seperate parts that come apart.
