Yeah, this is for the brake job.

I have not purchase a jack stand yet. However, do I shoot for a 2 ton or 3 ton jack stand?

Thanks everyone for the follow ups

2 ton should be safe, also remember to chock your wheels

Might as well get tall 3 ton stands from harbor freight or Sears, they are only like $10 more. Put your jack in the middle of your axel case next to the differential, jack it up high and put your stands on the axel next to your tires. I lower the jack on the stands and then jack it up so it is also supporting just as a precaution.

Just went to the local Harbor Freight tool store. Their jack stand are very cheap but also cheap in quality. I hope the stand will do the job holding up the truck.

I notice when jacking the front differentials, the passenger front wheel is much more elevated than the drivers side. Is there a way to jack the truck and have both ends equally elevated so I can slide two jack stands under the axles?

With a truck that has a center diff you just jack on the diff and both sides of the truck will raise evenly.
With a Rover having both diffs off center it is best to jack up one side at a time and then place your jack stand as far to the out side as you can.
Right at the outer most edge of the axle but right before the hub is a nice spot for the stand.
If your jack goes high enough you can place it in the middle of the truck on the frame, like the middle of the frame on the drivers side for example, and then do the brakes on the drivers side and then on the passenger side.
You dont need to do front brakes and then back brakes, do them on side at a time not one axle at a time.

Very helpful. Thank you Spike.

IM about to use my 3 Ton floor jack I just bought to do some first time ( on disco only) to check on what is loose up front... slight looseness in steering and and a loose ness. I have a new steering OME damper and new track rod even though mine doesn't seem loose its possibly the ball joints on rear or something else.... looking now... so basically I put jack on center front axle next to diff then put my 6ton jacks close to outside after parking break and rear wheels calked....? I went all out sine these jacks and stands are on sale at HF... saved about 90$ so jumped on it

One issue, some 2 ton jacks do not raise high enough to raise trucks. So make sure the lift height is good enough to raise your Discovery. Mostly with a discovery you will be raising at the bottom of one of the two differentials or on the Axel.

Example: I have a cheap 2 ton I use on my son's Taurus, I got it for 40 bucks, It will not lift/reach high enough to raise my Discoveries, Avalanche or FJ Cruiser to take the wheels off.

^^bump to ALL of that^^

Right now Sears has a Craftsman 3 ton jack 2 stands (also 3 ton) and a creeper for 119.00 bucks.