I"ve been through 3 sears / craftsman floor jacks in 15 years. For the money I spent on them I could have bought one real one. . sorry to say. After I almost lost my legs from the "cheepo" ($100-$120) sears jacks and jack stands when the Dodge fell, I went and spent real money on a real floor jack:
http://www.affjaxx.com/products/model350floorjacks.asp
I bought the 350ss. Goes up quicker than the 3. 5ton "quick" sears jack under load of the Dodge, or any of the sears ones I've owned.
Got it at a local TRUCK parts and tool shop. It's a 3. 5ton jack, and weighs a lot more than the any of the sears jacks I had. When you get the 3. 5ton AFF side by side to a sears 3. 5 ton jack , you wonder how sears has the nerve to rate their jacks the way they do. The AFF 3. 5 ton is about 50% larger, if not more. Much wider. Much larger wheels. All around much thicker metal. No cast iron stars for the drive for the relase, there is a a real UJ.
My sears 3. 5ton jack's handle would bend when jacking up the rear of the Dodge. The damn bolt that held the two peices together always fell out. Was gettng to the point of just welding the sections of handles together.
Sorry, but I was a sear floor jack buyer for awhile as well. The last incident with the sears 3. 5ton, made me realize I was getting what I paid for and pushing these sears jacks with the Cummins powered Dodge.
My old sears 2ton'er looked like a 2 ton'er compared to the AFF- that's fine. But the 3 ton and 3. 5 ton just don't compare. The sears' are creaking, bending, loosing height, with the Dogde on them. I didn't feel save getting under there to place the jack stands.
I tossed the two oldest ones and the newer 3. 5 ton sears only get's used on my wife's Altima. It's works fine for that.
The AFF is what I use to lift the Dodge now.
I know this posting completely tosses an opinion on the opposite direction of the entire thread, and Dave, you just bought one... sorry for chiming in late.
But only lift one wheel at a time, and not to high and off on too much of an angle. These sears jacks dont handle the offset weight very well ( with all things being relative. . our heavy Dodge. . my sears jack always did fine with the Altima and jeep). Dont take the tires off till the truck is safely down on the jack stands. Not taking the tires off yet and using Two sear floor jacks is why I still have my legs. I was lifting one wheel at a time on the front when the 3 year old sears floor jack let loose. One side of the axle was on a jack stand already and the floor jack was lifting the other side, it didnt like the side load of the truck being unlevel on the way up (floor jack side was lower. . other side on the jack stand with the tire about 4 inches off the ground while on the jack stand) I was jacking it up when the floor jack's arms kinda leaned, the weight shifted and all heck broke loose.