If you are talking about the I30 and Beltine right where mesquite and garland meet, technically it is a Northern Tool & Equipment....but it is pretty much the same thing as a Harbor Frieght
I just recently picked up a jack at Northern when I had to pull my transmission to replace that pivot bolt that the shift fork pivots on.
I think I picked up this one :
LINK
I haven't had any problems so far but I am sure that these are not built to last forever...