I have used the HF jack stands, have both the 3 and 6 ton units, with no issues, fully elevating the car with two HF jacks and site recommended lifting brackets and then supporting the lifting brackets with the HF stands. Clearly, the utmost of care at all times is exercised.
THAT SAID, I like the idea of the safety pins and will retrofit my HF jacks. I love my C5 but not on my chest!! This is a belt and suspenders issue, where we cannot exercise enough care for that one time we make a mistake in a moment of haste.
Appreciate the posts and commentary. Drive safe and work safer.

 

trying to tighten the crank bolt with a pittsburg steel impact socket.

 

Here are a couple of pics of my DIY cribs that I use. They're not fancy & are heavy BUT as stable as the car sitting on the garage floor. I made these a few years back. Someone asked how you do brakes, shock, etc. Simply jack up the rear /front, slide the a crib under the crossmember (forget what you call that thing) and you have the best jackstands money can buy. Either under the wheels or frame, car is totally stable. You can actually shake the car as hard as you want, it won't move. I have 4 of these (front & rear) and the car is level for oil changes, etc. I also made my ramps which are same height as the cribs. Like I said, they're not pretty, fancy, or light but I don't worry about getting under my car. Hate jackstands.....accident looking for a place to happen, IMHO, I just don't trust them. BTW, these cost about $40 to make.

 

Looks great. What are the lumber dimensions? Looks like five 2 x 12s stacked, correct? What length did you use? I also assume you lift the car either front or rear first and not side to side, correct? Have you found any difference as to which end to lift first? There is a footnote with the RaceRamp cribs that says the wheels should be chocked when installing the cribs while the car is on the ramp. Have you had any issues? I assume not because of both chocks on each tire.
Thanks.

edit: what length did you use for chock spacing? did you leave any gap or is it tight up againt the tire?
thanks again for the post

 

My 3 ton stands and floor jack are great..!

 

Thanks Florida99.......Here are the dimensions.

2X11X27 each board is 1 7/8" thick
Mine measure 9 3/4" high
The chocks are 1' from each end
Inside dimemsion of the chocks are 8 3/4"
When I made mine, I laid 1 board beside the tire and placed the chocks to the wheel (front & rear of tire) and marked the measurements accordingly. There is no play between the chocks so there is no movement. If I use them on the rear, I jack it up and slide the cribs under the rear wheels, let the jack down & roll the jack out. I chock the front with steel chocks for safety. Once I forgot to do that and raised up the rear and there was no problem, no movement at all.
If I use all 4 cribs, I drive up on my DIY ramps (old pic below), then jack up the front, then remove ramps, insert cribs. Then jack up the rear & place cribs. Totally solid. My wife used to be terrified when I used jack stands, used to check on me every few minutes. Now she seems to be at ease when I use the cribs. Years ago, I had my tahoe fall from one jack stand, luckily, I wasn't under it. It had been on the stands for over 2 hours, and jsut fell. The ratchet edge just let go. After that, I made the cribs. Now I don't even think about it falling. I don't have any extra body parts lying around & what I have I plan to keep for a while longer. If you need any more details, will try to help as much as I can. Oh, I have chocks on my ramp and my ramps are in steps so I can just count the step as I go up. And the ramp is 11" wide so I don't worry about running off.
This is a pic when I first made them, since then, they are longer with a more gradual incline. Work great.


Gregg