Are Grand Prix GXP brake calipers the same as Bonneville GXP brake calipers and rotor - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

Reply
 
 
 
Thread Tools Search this Thread
Old 01-27-2009, 10:26 PM   #1
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jan 2006
Location: St.Marys,Ohio 45885
Posts: 89
Thanks: 0
Thanked 0 Times in 0 Posts
cballweg is on a distinguished road
Default Are Grand Prix GXP brake calipers the same as Bonneville GXP brake calipers and rotor

I was wondering if the Grand Prix GXP brake calipers and rotors were the same size as my Bonneville GXP calipers and rotors.Also if they are bigger what size are the rotors and can they be swapped onto my Bonneville GXP.Thanks,any help would be much appreciated.Thanks,Craig
cballweg is offline   Reply With Quote
Old 01-27-2009, 10:34 PM   #2
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

From what I can tell no. Both the rotor and the caliper have different part numbers
Danthurs is offline   Reply With Quote
Old 01-27-2009, 11:37 PM   #3
Administratus Emeritus
Certified Car Nut
 
GXP Venom's Avatar
 
Join Date: Jan 2006
Location: Purgatory, Pennsylvania
Posts: 16,538
Thanked 7 Times in 4 Posts
GXP Venom is on a distinguished road
Default

Does the GP GXP come with 18" wheels? I would think the brakes are different. The GXP has an FE5 front suspension that was specific only to it.
GXP Venom is offline   Reply With Quote
Old 01-28-2009, 10:34 AM   #4
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jan 2006
Location: St.Marys,Ohio 45885
Posts: 89
Thanks: 0
Thanked 0 Times in 0 Posts
cballweg is on a distinguished road
Default

Both cars have 18 inch wheels
cballweg is offline   Reply With Quote
Old 01-28-2009, 10:53 AM   #5
Senior Member
Certified GM nut
 
Join Date: Jul 2004
Location: New York City
Posts: 1,912
Thanks: 0
Thanked 0 Times in 0 Posts
OLDsman105 is on a distinguished road
Default

The fronts are the same. Rears are not. Both have 12.7" brakes up front.
OLDsman105 is offline   Reply With Quote
Old 01-28-2009, 12:14 PM   #6
Senior Member
Certified Car Nut
 
Join Date: Oct 2003
Posts: 19,756
Thanks: 0
Thanked 0 Times in 0 Posts
1993 SLE is on a distinguished road
Default

the Calpers ARE different. the Rotor size is the same 12.7 in the front as olds has said
1993 SLE is offline   Reply With Quote
Old 01-28-2009, 05:02 PM   #7
Senior Member
Certified GM nut
 
Join Date: Jul 2004
Location: New York City
Posts: 1,912
Thanks: 0
Thanked 0 Times in 0 Posts
OLDsman105 is on a distinguished road
Default

Quote:
Originally Posted by 1993 SLE View Post
the Calpers ARE different. the Rotor size is the same 12.7 in the front as olds has said
The fronts are diffrent as well or just the rears?
OLDsman105 is offline   Reply With Quote
Old 01-28-2009, 05:34 PM   #8
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jan 2006
Location: St.Marys,Ohio 45885
Posts: 89
Thanks: 0
Thanked 0 Times in 0 Posts
cballweg is on a distinguished road
Default

The front calipers on the Grand Prix might be the same size but have GXP painted on the calipers whereas the Bonneville does not have GXP on the calipers which would give it a different part no. ,but they look the same size
cballweg is offline   Reply With Quote
Old 01-28-2009, 05:35 PM   #9
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jan 2006
Location: St.Marys,Ohio 45885
Posts: 89
Thanks: 0
Thanked 0 Times in 0 Posts
cballweg is on a distinguished road
Default

What is different on the rears?Does anyone know if caliper is different size or rotor?
cballweg is offline   Reply With Quote
Old 01-28-2009, 09:13 PM   #10
Senior Member
Certified Car Nut
 
Join Date: Oct 2003
Posts: 19,756
Thanks: 0
Thanked 0 Times in 0 Posts
1993 SLE is on a distinguished road
Default

the rear calpier is different, in the way it mounts on to the Lower controll arm. It also has a different bracket because of the LCA

the Fronts will not bolt up there will have to be fabrication
1993 SLE is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Do the Century, regal and grand prix 4dr, all have same molded carpet? viniepooh Buick 7 11-26-2012 11:26 AM
Will 18 inch Grand Prix GXP rims work on a Bonneville GXP cballweg Detailing & Appearance 5 01-28-2009 02:13 PM
2004 gxp bonneville front brake rotor problems claymonds Bonneville GXP/ Northstar Powered Cars 18 10-21-2006 02:39 PM
2005 Bonneville GXP -vs- 2006 Grand Prix GXP carlmorrell General GM Chat 21 02-19-2006 08:29 PM
bonneville key same as grand prix key???? its840 General GM Chat 6 10-20-2005 09:10 AM


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 01:59 AM.


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.