Front rotors - GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat


GMC/Chevrolet Truck/SUV When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made.

Reply
 
 
 
Thread Tools Search this Thread
Old 04-08-2018, 04:19 PM   #1  
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
gmcenoy's Avatar
 
Join Date: Mar 2018
Location: Linden, PA
Posts: 20
Thanks: 0
Thanked 2 Times in 1 Post
gmcenoy is on a distinguished road
Default Front rotors

Hey guys is there suppose to be two different rotors for the front because my driver side has size rotor from wat the passenger side has if not how can i fix that
gmcenoy is offline   Reply With Quote
Old 04-08-2018, 04:27 PM   #2  
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
gmcenoy's Avatar
 
Join Date: Mar 2018
Location: Linden, PA
Posts: 20
Thanks: 0
Thanked 2 Times in 1 Post
gmcenoy is on a distinguished road
Default

That is the new 1
This is the 1 thats was on originally
gmcenoy is offline   Reply With Quote
Old 04-09-2018, 10:53 AM   #3  
Senior Member

True Car Nut
 
Tech II's Avatar
 
Join Date: Feb 2014
Location: Worcester, Ma.
Posts: 2,503
Thanked 947 Times in 727 Posts
Tech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond repute
Default

Not exactly sure what your statement means, but looking at the pic of the new rotor, those pads are above the top of the rotor, meaning that the rotor is too small....a pad should have full contact with the rotor......

Did you measure the diameter of the new rotor to the old one(actually all you have to do is lay one down on the other to see if they are the same)? They can't be the same......sounds like something was mis-packaged or you were just given the wrong rotor........
Tech II is offline   Reply With Quote
Old 04-09-2018, 11:19 AM   #4  
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
gmcenoy's Avatar
 
Join Date: Mar 2018
Location: Linden, PA
Posts: 20
Thanks: 0
Thanked 2 Times in 1 Post
gmcenoy is on a distinguished road
Default

The new rotor is the one thats actually suppose to be on but the old one is too big and im not sure if that is correct or if i was to order the correct caliper bracket for the new one would that work or do i have to leave it like that and order a new rotor for the bigget one
gmcenoy is offline   Reply With Quote
Old 04-09-2018, 01:56 PM   #5  
Senior Member

True Car Nut
 
Tech II's Avatar
 
Join Date: Feb 2014
Location: Worcester, Ma.
Posts: 2,503
Thanked 947 Times in 727 Posts
Tech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond repute
Default

Is this your 2005 GMC Envoy? Have you owned it since day 1?

What is the diameter of the old rotor? What is the diameter of the new rotor?

All you are doing is replacing rotors and pads right? If yes, it'* the WRONG rotor!

Last edited by Tech II; 04-09-2018 at 01:58 PM.
Tech II is offline   Reply With Quote
Old 04-09-2018, 02:42 PM   #6  
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
gmcenoy's Avatar
 
Join Date: Mar 2018
Location: Linden, PA
Posts: 20
Thanks: 0
Thanked 2 Times in 1 Post
gmcenoy is on a distinguished road
Default

Yes its the 05 gmc envoy sle and my wife and i bought it in february. The old rotor is almost 13" and i replaced the rear rotors which were 12" im guessing because they fit on exactly the same way the old ones did. The new rotor is also 12" which the passenger side is the same and fit exactly on with no problem. So thats why im wondering if i order the bracket to fit the new rotor would that work. All three rotors fit but the driver side.
gmcenoy is offline   Reply With Quote
Old 04-09-2018, 05:53 PM   #7  
Senior Member

True Car Nut
 
Tech II's Avatar
 
Join Date: Feb 2014
Location: Worcester, Ma.
Posts: 2,503
Thanked 947 Times in 727 Posts
Tech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond repute
Default

What about the RF rotor? Isn't it 13" also?

How many times do I have to tell you it'* the wrong rotor?

The top edge of your pad should be touching the top edge of the rotor.....in your picture it is not.....

Apparently there is more than one size rotor for your vehicle, which can be different for the base model, XL model, XUV model, etc. ......get the same size as your old one.....
Tech II is offline   Reply With Quote
Old 04-09-2018, 06:03 PM   #8  
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
gmcenoy's Avatar
 
Join Date: Mar 2018
Location: Linden, PA
Posts: 20
Thanks: 0
Thanked 2 Times in 1 Post
gmcenoy is on a distinguished road
Default

Never mind then
gmcenoy is offline   Reply With Quote
Old 04-09-2018, 06:34 PM   #9  
Senior Member

Posts like a Northstar
 
Join Date: Feb 2015
Location: Earth
Posts: 642
Thanked 109 Times in 97 Posts
CathedralCub is a name known to allCathedralCub is a name known to allCathedralCub is a name known to allCathedralCub is a name known to allCathedralCub is a name known to allCathedralCub is a name known to all
Default

Quote:
Originally Posted by gmcenoy View Post
Yes its the 05 gmc envoy sle and my wife and i bought it in february. The old rotor is almost 13" and i replaced the rear rotors which were 12" im guessing because they fit on exactly the same way the old ones did. The new rotor is also 12" which the passenger side is the same and fit exactly on with no problem. So thats why im wondering if i order the bracket to fit the new rotor would that work. All three rotors fit but the driver side.
You never have to change the bracket to replace a one-for-one stock brake rotor. My guess is that someone guessed either the size of the rotor or the number of pistons in the caliper. Different size rotors on one side versus the other means braking will pull the vehicle towards the larger rotor, and one side'* pads will wear faster than the other. My suggestion is that you take the original rotor with you to the auto parts store, compare diameter, swept-area thickness, and bolt holes. Then install and you should be good to go.
CathedralCub is offline   Reply With Quote
Old 04-09-2018, 06:52 PM   #10  
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
gmcenoy's Avatar
 
Join Date: Mar 2018
Location: Linden, PA
Posts: 20
Thanks: 0
Thanked 2 Times in 1 Post
gmcenoy is on a distinguished road
Default

Ok thank you ill look into that i just never heard of a vehicle having 1 different rotor out of all 4
gmcenoy is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
New front rotors for GXP GXP_Vince Performance, Brainstorming & Tuning 11 06-05-2007 07:00 PM
Steering Shaft, Front engine Mount, Brake Rotors, and Pads obis88 Bonneville GXP/ Northstar Powered Cars 3 04-20-2007 10:49 AM
Front Rotors crod101 1992-1999 11 07-15-2005 08:30 PM
Replacing Front Brakes/Rotors asdfbadboy 2000-2005 3 06-05-2004 01:01 AM
Front brake rotors 1992 Bonnaville SE BarryBoy 1992-1999 6 09-16-2003 03:46 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 07:10 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.