I have the small drill type chuckable impact 20v DeWalt, and the big 1/2' drive 20v DeWalt. The big'n is rated at 300 lb/ft and zips wheels on/off with ease. The smaller one I have is only rated to 75 lb/ft and works great for small stuff, just have to be careful not to strip philips head screws with it.

I wouldn't get nearly as much done as I do without them.

~THOR~

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1984 D100 Shorty Custom
Certified Auto Appraiser - RevItUp Classic Appraisals
President - Cherry City Bombers CC
Part of Tyrde-Browne Racing

After doing some more research, the one I was looking at (fixed 3/8" drive) has almost exactly the same advertised torque as yours with the quick-change fittings (150 ft-lbs/1800 in-lbs). So it's probably the same motor.

I have an old DeWalt 18V impact driver of the small quick-change style, which was advertised as ~1100 in-lbs (90ish ft-lbs), so I decided to test it and see if it could break a lug nut loose. The Race Dart lugs were all torqued to 95 ft-lbs about two weeks prior, and my 18V driver was barely able to get one off, after about 10 seconds of hammering. I assume the same lugs would not budge after several months of rain and corrosion.

The small 20V driver has about 50% more torque and should fare better, but since I already have one in this "weight class" I decided to strike that one from my wish list and go with the "mid-range" 1/2" drive 20V impact wrench rated at 330 ft-lbs. The detent pin version with a 5 Ah battery and charger is also on sale on Home Depot right now.

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Somehow I ended up owning three 1964 slant six A-bodies. I race one of them.
Escape Velocity Racing

I have the 20V DeWalt drill and small driver. The 1/2” 330 ft lb impact is the one I’m leaning toward as well.

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Rob

I’m Mater
The Kentucky Poser

Angie and I went to Home Depot to look at the 330 ft lb version. We wound up walking out with the bigger high torque version. The mid range (330 ft lb) was only for sale by itself with no battery or charger. The larger one was just $50 more with the battery, charger and carrying bag.

I'll report back on how many lug studs I twist off...

_________________
Rob

I’m Mater
The Kentucky Poser

Remember Rob, some of those early lugs are left hand thread....

~THOR~

_________________
1984 D100 Shorty Custom
Certified Auto Appraiser - RevItUp Classic Appraisals
President - Cherry City Bombers CC
Part of Tyrde-Browne Racing

Good point THOR! I have to remind myself of that every once in awhile when I'm fiddling on the early A body schtuff. It don't always work & I do wind up cussin' at lug nuts from time to time... This sucker'll just rip 'em right off if'n I ain't careful...

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Rob

I’m Mater
The Kentucky Poser