Extreme wobble in the front end at speeds over 60 kph. Have change tie-rods and stabilizer shock, but problem persists.

Ball joints and tie rods may even be a bad wheel bearing replace them in pairs

Front end is a pretty vague description of what you are trying to do. There are - shocks -lower ball joints -upper ball joints -inner tie rod ends -outer tie rod ends -idler arm -pitman arm -center link -stabilizer links -stabilizer bars It is not likely that all of those need to be replaced at the same time?

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Here are the tie rod end nut torque specs:
• Lower Control Arms - (Front and Rear bolt) 129 ft-lbs x2 and (Knuckle Stud) 37 ft-lbs
• Upper Control Arms - (Front and Rear bolt) 140 ft-lbs x2 and (Knuckle Stud) 37 ft-lbs
• Inner Tie Rods - 81 ft-lbs
• Outer Tie Rods - (Knuckle Stud) Tie Rod nut 44 ft-lbs and jam nut 55 ft-lbs
• Stabilizer Links - 17 ft-lbs
• Rear Shocks - Lower and Upper 85 ft-lbs
• Front Shocks - Module Bolt x2 37 ft-lbs, Module nut x3 37 ft-lbs and Stud nut 37 ft-lbs

Front end need to be checked. checked shocks and stabilizer links.
check damper shock. Check the tie rods. They had come loose, causing the wheels have excessive play and vibrate. Be aware that they will not balance tires or give a front end alignment if the tie rods are the culprit. They must be replaced first, otherwise the alignment will only hold until the first time you turn the wheel...which could be 5 seconds after you get in the car. Good luck.

could be a bd axle or ball joints wheel bearings are also a concideration

Whilst not familiar with your vehicle, in mercedes it is called highway hop, and was caused by the universal joint(speed related) that goes to the gearbox,they also added a damper to the diff (weight, frequency related)), , in regards the leaf springs, unless the spring hanger bushes are totally knackered it shouldn't cause problems.
Look at
1)bushes
2)unijoints or excess movement of the gearbox output shafts
3)excess pinion movement of diffs(where the uni joint bolts on)
4)ball joints
5)?bent axle (rare but they do do it)
6)swivel bearings in the front diff
Not sure as to your front end set up, but this may help?

you have a bad belt in the front tires have them checked and balanced and make sure you don't have a bent rim...please rate the solution

Here's the fix. Have all of the front end components checked for excessive play (tie rod ends, ball joints, pittman arm, and steering box) and replace any components that are worn. Also, REPLACE the steering stabilizer! It looks like a cross-mounted shock absorber attached to the frame and your steering linkage. These wear out and cause the exact condition that you've experienced.

this is known as death wobble because it feels like you are going to die but slowing down will end it.

The cause for death wobble are:

1. Worn or loose tie rod ends on your steering linkage.
2. Worn or loose trackbar bushings or tie rod ends on the trackbar itself.
3. front end needs alignment.
4. and many others but the common reasons are listed above.

try to realign the front end. If it doesnt help, then you do indeed have worn steering / suspension components.

My Death Wobble started immediately after I installed a set of Coil Spring Spacers (to lift 1.75 inches) on my stock 2005 Jeep Wrangler X. Turned out, the DW was because while changing the height, I also lowered the CASTER angle in the front end. So, to fix it, I could have purchased a set of eccentric bolts for $50+. Instead I went out and purchased a piece of 1.5 inch flat bar for $10 from OSH. I cut out 4 1.5 inch squares. Then i drilled 7/16 inch holes centerline, but close to one side (in exactly the same place) on all for squares. I then removed the lower control arm bolts, nuts and washers. I installed these square offset washers I made so the front axle would be pushed forward (to increase the Caster angle). The toe setting changed a bit, so I reset them to about 1/8 inch toe in. After driving my Jeep, I noticed there is no more DW. The steering wheel was off center, but after 3 attempts, I have that perfectly centered. I have every intension of having the alignment checked, but not till after I find the new tires I want. If anyone is interested, I can draw out and photograph the cure and send it to you. My e-mail is bb62471(at)yahoo(dot)com.