Originally Posted by olddudesrule

A 3 gallon might work, but the small tank capacity would force it to run continually if you were using the tool for any length of time. This gets really annoying after a while, since the compressors are usually loud on these things. For the cost, I would look for one at least 15-20 gallons in size. My 30 is actually a medium sized standing model. Doesn't take up much room.

As far as air tools being difficult to use in tight spaces, that may be the case for a standard sized air impact wrench. The kit I bought has two, the smaller of which can easily fit in smaller spaces. Used in conjunction with rachet extentions and swivel connectors, I can get into most places. The smaller air wrenches don't have the torque of the full sized ones, but they make some jobs a lot quicker (like exhaust work).

The air tools came in real handy in the Swift Spec R spring install I did a few weeks ago. Would have been a bitch breaking a few of the bolts without it. A breaker bar can work as well, but air is quicker. Getting ready to add new studs for 15mm wheel spacers, and the impact wrench will again be a great tool to have......you get the idea...