Just had new brakes on mazda pickup and steering wheel vibrates when i turn the steering wheel. it even does it stopped and even with the truck front jacked up

SOURCE: Steering wheel vibration on 2004 toyota corolla

does it vibrate durreing brak aplicatin, if so probably a out of round rotor,ifatlower speeds just driveing
most ikely a seperated tire

SOURCE: price on a 1991 B2200 Mazda Pickup truck carburetor

Depends if you want new or used, Location, and a few other variables

SOURCE: Vibration when car is in idle.

sounds like an engine mount..not a tranny mount. could also be a bent rod

SOURCE: Roaring sound coming from front end as Mazda gains

You have a front wheel bearing that is making noise. Usually the one that is the problem is louder when turning in the opposite direction. If you turn right and noise gets loud then its your left bearing and if you turn left and the noise gets loud then its your right bearing. Understand that thats just a rule of thumb and that either bearing can make noise in either direction. Good luck!

SOURCE: Mazda b2200, 1989 109000 miles.

I have the same thing but mine is between 45-50 mph. I read about this a while back in a magazine for people that pull campers, the problem exists in all vehicles although its not as noticeable in every thing you ride in. There is a certain "point" at which your speed and engine speed reach, that causes a phenomonon that causes a vibration. Engineers relate it to "harmonics" which is a similar issue but in the electronic field of study. There is nothing you can do for it, and it varies from unnoticeable in some vehicles to driving you insane in my 1989 Mazda B2200. I had an '89 Ford F-150 that did it at 35 mph and a 2001 Dodge Diesel that did it at 45 mph, but those were the only three vehicles I've ever driven and noticed it.