I second (or third) the Harbor frieght unit. I have both the 2.5 ton low profile (Floor Jack With Rapid Pumpģ, 2.5 Ton Heavy Duty Steel
And I have the lightweight aluminum racing jack (Aluminum Floor Jack - 1.5 Ton Aluminum Racing Jack
) to take with when I got to the track, or need to take some where.
You can usually find them on sale for 59-69 bucks, you just have to wait until those models go on sale.