I have an Craftsman electric 1/3 HP that belonged to my Dad. I've used it quite a bit and it's been very handy for cars, trailers, and small trucks. It wouldn't crack the nuts on my Dodge 2500, though. They were torqued to about 175 ft lb when I got it. Around 140 or so is the book torque on them. It had new tires so a tire shop had to have done that. It would probably be too light for a 3500. Don't sell electrics short, though. They're very handy and can be used anywhere that you can run an extension cord.
βIn a time of deceit telling the truth is a revolutionary act.β β George Orwell
It's not over when you lose. It's over when you quit.
On the advice of the campfire I got an IR 2135 TiMAX impact wrench 780 ft-lb of torque. I had a CP 1/2" impact wrench that wouldn't budge the lugs off my 3/4 ton truck, with the IR it zips them right off.
I have 3 vehicles that I switch or rotate tires twice a year, a good impact wrench is a necessity.
If you get a new $100 or under impact wrench it'll either not have enough torque to be of any use, or you'll be tossing it in the trash in short order.
That IR will do her. All the pro mechanics I know use either IR or Snap On. Myself, I have a CP that works just fine for me. It gets pretty limited use so it should last awhile.
I run a CP a Snap-on, a craftsman electric and I even invested in a 12 volt one, which we used last year for doing tires on an ATV, but it has also worked on cars and trucks for me. But I agree there is not much for 100.00 bucks that will last. Forgot to mention my old snap on was one of the high torque 1/2" guns, I run it off a 1/2" airline, all others I run off the 3/8' airliine, but that 1/2" airline makes a difference and would even work better on any 1/2" gun.
"The 375HH is the greatest level of power you can get for the investment in recoil." (JJHack) 79s and losttrail, biggest waste of air.