'07 GMC Yukon XL Denali Brakes - 4 wheel kits - Opinions/Experience?

[93blkongreenpro]

You put the fronts on backwards, the slot is supposed to go "against the grain" of the pad so the rears are right the fronts are backwards.

On 90% of the el cheap-o's, the vent vains are straight like standard rotors and not angled, so it doesnt matter which direction they go.


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[petethepug]

Slotted / drilled rotors absolutely have a specific orientation to each side of the vehicle. The pattern is calculated to pull air, gas, heat, brake dust through the cavity / vent from the outside and expel it from the interior of the disc regardless of directional or unidirectional vanes.

The correct orientation can be verified by looking at the top half of the disc. The slot / drilling should start at the inside diameter of the disc and point to the back of the vehicle until it reaches the outer diameter of the disc. Any other orientation is no bueno.

Brake noises occur if the supplied hi temp grease is not used on the mating surfaces of the brake piston to pad and on the ears of the pads touching the callipers. Some pads have a rubberised backing that stops the vibration / noise all by itself. Usually, when there’s no backing or rubber pad, they make noise.

Nice to see this post revived.


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[thompsoj22]

go the $240 route, unless your running your 6k lb denali around willow springs raceway you arent going to see the performance "window" that often. I just dont get high performance marketing, As stated this isnt your first rodeo, So simply install quality parts and save the "HP cash" for adding reliability to some other area on the vahicle. as far as directional, if it's machined to run CW than you should not run it CCW.

 

[jmm121783]

After a little bit of talking around I went with the straight blanks, no slots, no drills, no dimples. Ever since the cheapo Cross Drilled/Slotted Rotors came out, I have been one to bite. I always thought it could extend brake life and help with fade and what not so I put them on every car I've owner recently. I do believe they cool better but I also believe you need to go with a good NAME BRAND. The common phrase " You get what you pay for..." always comes to mind when talking anything "aftermarket". With that in mind, I wanted a good brand name, without the gimmicks of holes and slots that would perform on the heaviest vehicle I've owned....and to be totally honest, I would've loved to find a pair of the Power Stop rotors that were Slotted only, no cross drilling because I feel that would be very beneficial not only towards the longevity but also the constants of daily driving!

Anyone have any feedback on this particular kit for our trucks?

I should be able to offer my two cents here shortly on the "Blanks" kit from PowerStop w/ their Ceramic Pads.

 

[asand]

I had the power stop parts from ebayer brakemotive on my Camaro and loved them. Direction of slots and holes really doesn't matter, purely aesthetic. Direction of cooling vanes is important IF they are directional. Brakemotive marks theirs left and right for ease of mind but it still doesn't make a difference.

The only real difference is the direction of the slots will force the pads away or towards the axis, but not a perceptible amount.