Brake jobs are not a job to be done without a Manual. Your life and
the lives of others and the life of your Automobile depend on them.
Please purchase a Manual and do the job correctly.
Good Luck and Remember.
Change Your Mind, Not Your Oil.
Use the First In Synthetic Motor Oil's.
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It depends on the type of vehicle that you have. You have to remove
the caliper which is what holds the brake pads and squeezes them
against the rotor (the part the wheel bolts to) so that the
friction stops the vehicle. Different manufacturers use different
methods to mount the caliper. GM uses 2 bolts to hold the caliper
in place using either a torx head bolt or a 3/8 hex bolt. Some
Fords use two expandable pins to hold them in place that you can
drive out of their slot with nothing more than a screwdriver or
punch. After you get the caliper off you have to push the piston
back into the caliper or the new pads won't fit in the space and go
back over the rotor. Sometimes you can do this with a large pair of
channel lock type pliers or with a special tool made for it but it
has to be done. If the rotor has been scraping the metal plate of
the old pads and and/or has grooves in it to any extent at all then
they need to be "turned" on a brake lathe to true the surfaces or
the new brakes will wear out very rapidly. If the rotors are
severly worn and too thin then they will have to be replaced also.
Best thing to do is talk to your guys at the auto parts store and
they can explain that procedure to you.
On a Nissan you need to buy special tool to wind caliper in. these
are available at any auto store. the caliper does not squeeze the
piston in as you do on a gm or ford they must be screwed in , and
from memory it is left hand thread.so any way, jack up car remove
wheel remove bolts holding caliper on remove pads they just slip
out' screw piston in. to remove rotar, with large channel locks
remove small cover at centre of rotar. this gives you access to
axle nut. remove cotter pin. remove axle nut and bearings,keeping
all out of dirt, as they are covered with greaseslide rotar off
axle. good idea at this time to replace bearings. tap bearing race
into back side of rotar then insert bearing and seal. tap bearing
race into front side of rotar.slide rotar back onto axle. isert
front bearing and washer tighten axle nut. do not over tighten,spin
rotar .if it wont spin it is to tight, (oops grease bearings as you
go) insert codder pin thru castle nut. u may have to tweak nut a
little to find right place for cotter pin half fill dust cap with
grease. tap dust cap back onto axle install pads into caliper.
reintall caliper on rotar and install bolts that secure caliper. if
you did this correctly you will not need to bleed brakes. replace
wheel. lower jack ,then do same on opposite side of vehicle you are
now ready totest drive before moving vehicle, start engine and
stand on brakes, this will adjust new pads to where they need to
be. test drive