GadgetGuy

Is it safe to work on a truck that is sitting on 4 jack stands?

Tackle

Yea. There are much worse options. I wouldn't hesitate to do extensive work under a vehicle on 4 stands.

If you're leaving the wheels on, ramps are better.

Raybz

Depends on what your doing, where you locate the stands, how high your setting it and how stable it's sitting

techrep

iTrader: (1)

and the slope of your driveway ... Lol

130428

as long as the stands are rated for the weight of the truck... which shouldn't be an issue for a F150...
I have seen a mechanic leave the bowl of a 657 CAT scraper (look it up if you don't know what it is) sitting on 2 regular jack stands overnight... when we came back in the morning, the bowl was on the ground, and the jacks buried 8" deep!

GadgetGuy

Thanks guys.

I should've mentioned that it is in my driveway which is flat. I'm doing brake work ATM which will likely involve beating on the drums with a BFH. The rotors were a HUGE PITA to remove. Right now I have 2 stands under what I think is the frt cross member (if it's forward of the frt differential & what the skid plate is bolted to). I'm about to lift the rear by the differential & put stands under each axle housing. I am concerned that the truck might move enough to come off the frt stands when I lift the rear tires off the ground.

Two are rated for 2 ton & two for 3 ton.

It'll be sitting like this for a week or two.

Raybz

Flat driveway, Cross member and axle

I'd crawl under that

Zebracakes

Easy way to get the rotor off. Put a bolt with a nut on it trough the caliper bracket and tighten the nut, which will pull the bolt forward pushing on the rotor. Causing it to break free.

GadgetGuy

I tried that & several other ways. It worked on the L/F. But when I tried it on the R/F, the lower bolt hole snapped off the knuckle & the upper bent badly. And the rotor didn't budge! I had to remove the hub with the rotor on it & bring it to a machine shop. The guy there got it off using his 30 ton press. He thinks it took about 25 tons of pressure to do it!

Jbrew

A 57 bowl, yea that weighs quite a bit more than a F150 lol.