Hello new to this site and am hoping for some confirmation concerning the following:

85 Toyota long bed pickup 22re strait axle.

Lifted the front end to do a brake job.

Floor jack to center of axle no jack stands.

After work was complete truck has a shake in the front end 40 to 50 mph.

Is it possible to bend my axle lifting it that way?

P.S. my tires are not balanced but it didn't do this before the brake job.
The brakes have been installed properly.

Thank you in advance

Just realized that I posted in the wrong place could a mediator move this to 84 85 pickups and 4runners