Hi ginko,as i take off getting speed feels like wabeling tires, no lose parts, new tie rods 91 cadi el dorado 4.9?

does it get worse the faster you go? could be your lifters or valves ticking.

Could be your tie rods coming out of the rack and pinion and attached to the wheels. Grasp the tie rod near where it attaches to the wheel and see if you can shake, twist or move it. If you feel any play or looseness at all in the tie rod joint, then it is worn badly. Both outer tie rods at each wheel should be replaced. If the outer tie rods are tight, you can't move them with your hands, then have a shop check your inner tie rods for wear. Have them check the ball joints for wear, also. Or you can raise the wheel off the ground. Be safety conscious. Grab the tire at top and bottom. Can the tire move in and out, feel play in the lower ball joints? Any side to side play in the wheel? Maybe you can spot the looseness at the tie rod or balljoint. Maybe you'd better let a shop look at it.
A CV joint wouldn't have those symptoms. A wheel bearing possibly, but usually accompanied by a grinding noise. Have it checked out.

jusjt ask the parts counter person they can tell you

check the wheel balance, maybe the shop didn't do a good jobor some of the wheel weights fell off.

I would count the number of threads exposed at the point of adjustment and duplicate those on the new. This will get you close enough to be safe but replacing any part that can affect tracking needs to be also brought in for alignment, otherwise you may have a tendency to pull left or right and experience uneven and abnormal tire wear.

What you describe is most often caused by a bad tie-rod end, which is part of your steering. This causes the clunking that you feel when you turn, and the tire wear.
Jack up the front drivers side and when the wheel is off the ground, try to force it left and right. If you feel any play in it, a tie rod end is bad.
To find out if it is the inner or outer tie rod end, look underneath and locate the tie rod for that wheel- it will look like a pole about an inch thick. Get somebody to move the wheel left and right like you did, and look on either end of the tie rod for which end is moving. That will be your bad tie rod end. The "outer" is the one by the wheel- the other one is the "inner". Most often it is the outer tie rod end that goes bad.
It is important to get a bad tie rod end replaced as soon as possible because it can separate and cause you to lose control of your car when the wheel will suddenly turn either in or out, depending on which way you are steering when it fails. After a tie rod end is replaced, your car will need an alignment to set the adjustment correctly. If you are changing it yourself, mark how far the old one is threaded in so your alignment will be fairly close to where it was.
Good luck, and Thank You for using FixYa!

FRONT OF ENGINE ON PASSENGER SIDE

northstar? is located on driverside wher the water pump is right infront of the radiator. it has 2 10mm bolts holding the thermostat in place. the engin coolant temp sensor is located on the driver side on the motor towards the fire wall

The tie rods are part of the steering system not connected to the battery. If you have an estimate from a shop it should show a battery on a different line than a tie rod or tie rod end. Tires vary greatly in price depending on size, use and brand. Many tire dealer websites hae do-it-yourself tire pricing allowing you to choose different options.

The thermostat is located on the engine side of the upper radiator hose.