The GMC CCKW

I need to take a wheel off (flat tire).

Since I have not really worked on a vehicle this large (my 2004 Ram is close in weight) whats the best way to jack up the beast?

Would I need a special 'large truck' type jackstand?

Any advice is helpful.

pfarber wrote:Since I have not really worked on a vehicle this large (my 2004 Ram is close in weight) whats the best way to jack up the beast?

Front or Rear?

What jacking equipment do you have access to?

Bill

I normally chock a wheel with a short 4x4 and use my 3 ton roll around jack when jacking up just one front wheel. It will jack up the rear wheels when placed in the middle of the differential.

I purchase two 3.5 ton Craftsman floor jacks, They were bundled with two 3.5 ton jack stands each.

I use both jacks on one side rear backed up by the jack stands and then I wood crib the meatball for additional safety. The wheels still touching the ground are chalked.

Front I use the Jack on one side backed up by jackstands.

Sears had this bundle on sale for $99 when I bought it. Good deal.

Bill

If you jack up both rears on one side, you can lube all the u-joints while you are under there as you can rotate the driveshafts.... MUCH better!

Very much like Bill's suggestion, I have had all four wheels up at one time by using 3 ton bottle jacks and jack stands. This is not a normal situation though. Generally you will want to work on one wheel at a time. Just remember safty at all times and chocked wheels are a must.

I have some 10 ton bottle jacks.. so it looks like I will use those.

Eventually I want to get a 5 ton bumper jack so that when I do brake work, I can lift one end up to a non-back breaking height.

Use a 3.5-ton or 5-ton floor jack. And use 6-ton jack stands to hold a large truck. Avoid bottle jacks for they can slip out real easy under a load.

Page 11S-3 (TM10-1563).

I have used rounds of firewood ( telephone pole size) instead of jackstands on soft ground .They dont tend to sink and are stable. The cooler king

I use a 22 TON AIR/HYDRAULIC BOTTLE JACK with 6 ton jack stands works like a charm

Try not to jack the rears by the torque rods. Especially if you have rubber bushings. No need to strain them.

I use a 3 ton bottle jack.

Regards,

Chris

In according with TM9-801,page 20,section III,the correct jack for the CCKW is 3 ton.

Not to start a serious discussion, but:

Try to find a CCKW banjo torque rod NOS with good bushings. Very tough to find. That is one reason to be nice to them regardless of what the manual says. The other is safey. The bottom of the torque rods is rounded, Not an ideal place to put a jack....

Do what you want, I do not jack them there and have not for 27+ years

i use two 10 ton bottle jacks two 5 ton stands wooden blocks for soft ground (essential )

Nobody here wrote or said or shown pics that the jack was made to be placed in bottom of the rounded torque rods.In the manual pic(page 11S-3,TM10-1563) shows that it must be placed behind the torque rods.See in your CCKW that there is a ideal place to put a jack.

That area is alsp slightly rounded and has the grease fitting for the trunion bearing as I recall