shuddering

When my 97' blazer gets up to about 65 mph a shuddering in the wheels starts and gets worse the faster I get. I stop accel at 70 mph and back down to 60 mph. Diagnosis?

Just to clarify, the shuddering is happening during acceleration and not during braking, right? If that is the case, I'd have the front end completely checked out for worn parts including the front wheel bearings. If it is happening during braking, check for warped rotors. Good luck!

Yeah it shudders only during exceleration not during breaking. It only does it at speeds 60+. I can feel it slighly in the steering but most the front of the cars has a slight constand shudder and gets more noticable the faster the speed.

Oh, and get the tires balanced too!

Already got the tires rotated and balanced. Almost made it more noticable.

How about a Wheel Alignment?

Get you front end checked.

Is it going to be costly???

Obviously it will depend on whats wrong with the truck and what kind of reputable garage you take it to. The real question is, can you afford to get it fixed, but can you afford not to. If your front end has worn/loose parts you will start seeing excessive tire wear and your expense will be even higher.

Jack up one side of the vehicle so that one wheel is off the ground. Have a friend rock the wheel as if the wheel was making a turn. You then lay under to observe the steering linkages. Look for any play in the tie rod ends, center link, idler arm, pitman arm and you may have to remove the splash pan to do this. When you have done this, get a pry bar and put it under the wheel and rock it up and down and look for play in the ball joints. Jack up the other side and repeat. If you find anything, you can either do it yourself (the repair) or take it to someone who can but at least you will have an idea and this is a good start.