Going to change the axles in rear of CJ and put in a new tranny, and engine mounts, will be in my garage for a week or more, plan was to put it up on 4 axle stands, I have 4, rated 3 ton, but I see it says use only on one end, never use to support both ends of a vehicle. Is there any reason not to use like I planned? Don't know what an 81 CJ7 weights, but I suspect about 4500 pounds.
Greg did pass the time by typing:
They say that because if your under the vehicle and one stand fails or the vehicle gets bumped they all could fail and you could become one with the pavement. Yea.. unlikely event, but 100% fatal.
Generally it's not a good idea to work under a vehicle supported only with jack stands. If your going to, consider putting the tires or solid blocking under the vehicle frame for safety.
Stability.
When you jack things up they tilt as they go up. The two jack stands aren't bad for keeping too much lean out of the stands, but 4 is hard to do and believe me it is seriously unstable if any stand gets up on 2 or
3 legs. I only ever tried it once or twice and didn't like it at all.It isn't safe to wrench on.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT'sGreg wrote:
Just put the rear on stands when you do the axle... leave the front on the wheels. It's safer that way.
-- JimG
80' CJ-7 258 CID 35" BFG MT on 15x10 Centerlines D44 Rear, Dana 30 Front. SOA 4.56 Gears, LockRight F&R Dana 300 w/4:1 & Currie twin sticks Warn X8000i w/ dual batteriesI use ramps for the front and stands for the rear.
Cheap stands work fine, until they let you down. I use some big rectangular monsters that are not made from a cheap tube. The base is quite stable, but on my gravel drive, i still put steel plates or
3/4 inch plywood under them. I raise one end, put 2 under the axle tube or frame rails, then set the jack under the rear on a steel plate(so it can roll) then bring it up. Some jobs are best with it 2.5 feet up, so I do it in 3 lifts to keep the angles shallow. You only get crushed once, so i am trying to put that off as long as possible.On 11 Jan 2004 03:45 PM, Paul Calman posted the following:
I heard a story about a guy who was working under a car and it slipped off whatever jacks/stands/blocks/whatever it was sitting on. They found him crushed the next morning, with a drop light burned into his chest.
---------------------------------------------------- Del Rawlins- del@_kills_spammers_rawlinsbrothers.org Remove _kills_spammers_ to reply via email. Unofficial Bearhawk FAQ website:
Are you replacing the axle or just the axle shafts?
If you are replacing the shafts, then support the vehicle by the alxes and put the tires under the vehicle too. If the vehicle falls, you want it to land on something other than you.
If you are replacing the axle, D35 to D44 swap, then you have to raise the vehicle higher and put the stands under the frame -- at least under the end where you want to swap the axles. You still should put the tires under the frame while you work.
My suggestion is to that you only raise the end you want to work on, and support that end by jack stands AND the jack itself if there is room to do that. Then you should still put the tires under the frame just in case.
I had my 86 cj7 258 6 cyl 5 speed on a scale at a weight station and it weighed 3120 lbs. with a fiberglass body and 5 32" tires . carmine
MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.