Thread: GXP rims on a GT

Results 1 to 10 of 10
  1. #1 GXP rims on a GT 
    SE Level Member
    Join Date
    Nov 2018
    Location
    Detroit
    Posts
    4
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Chats
    0
    I bought a 2005 gtp today with GXP rims and the car needs new tires.. I know the gxp uses different size tires on the front and back. What size should I put on my gtp? Should i put all the same size ?
    Reply With Quote  
     

  2. Advertisement




  3. #2 Re: GXP rims on a GT 
    GTX Level Member industrialfish's Avatar
    Join Date
    Oct 2011
    Location
    Toledo, OH
    Posts
    1,239
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Chats
    956
    Check to make sure you actually have 2 different sized rims first. People like to swap them to have 4 of the same size when putting them on other cars.

    You can run all the same tire even if they are staggered. I don't know what the best tire is for that, but I know it's been brought up on here before.
    2005 GTP - Graystone Metallic|SPO grills&spoiler/SE lip/Carbon Fiber INFERNO hood
    7"
    Spectre|3.4 MPS|42lb Blue Giants+E85+Walbro 450lph pump
    SpeedDaddys|AL605|Vogtlands on FE3s|Vinnie's Spacers on solid lowers|Intense poly uppers|
    Dorman + Addco sway bars|Drilled/slotted rotors|Plasti-dip 17" QP2 at +27 offset
    Reply With Quote  
     

  4. #3 Re: GXP rims on a GT 
    SE Level Member
    Join Date
    Nov 2018
    Location
    Detroit
    Posts
    4
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Chats
    0
    Same size rims. They are the GXP rims. Tire size is all the same st the moment 345-45-18.
    Reply With Quote  
     

  5. #4 Re: GXP rims on a GT 
    GrandPrix Junkie SgtMarshal's Avatar
    Join Date
    Feb 2012
    Location
    Kemmerer, Wyoming
    Posts
    4,305
    Thanks (Received)
    2
    Likes (Received)
    11
    Dislikes (Received)
    0
    Chats
    42781
    are you sure it's a 345? i'm willing to bet you meant to say 245. if that's the case I would stick with that size because it's way more common than the size on the actual GXP. ask me how i know.
    Reply With Quote  
     

  6. #5 Re: GXP rims on a GT 
    GTX Level Member industrialfish's Avatar
    Join Date
    Oct 2011
    Location
    Toledo, OH
    Posts
    1,239
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Chats
    956
    Quote Originally Posted by GrandPrix1118 View Post
    Same size rims. They are the GXP rims.
    GXP comes factory with 18x8 rims in front, but 18x7 rims in back.
    2005 GTP - Graystone Metallic|SPO grills&spoiler/SE lip/Carbon Fiber INFERNO hood
    7"
    Spectre|3.4 MPS|42lb Blue Giants+E85+Walbro 450lph pump
    SpeedDaddys|AL605|Vogtlands on FE3s|Vinnie's Spacers on solid lowers|Intense poly uppers|
    Dorman + Addco sway bars|Drilled/slotted rotors|Plasti-dip 17" QP2 at +27 offset
    Reply With Quote  
     

  7. #6 Re: GXP rims on a GT 
    SE Level Member
    Join Date
    Nov 2018
    Location
    Detroit
    Posts
    4
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Chats
    0
    It has 245/45/18 s on it. Front and back. So if I have GXP rims. Just make sure the 18x8s are in the front ?? Also I think I have a GT. When I start it up. It says wide track on the screen. I believe it was top swapped with supercharger / heads
    Reply With Quote  
     

  8. #7 Re: GXP rims on a GT 
    GTX Level Member industrialfish's Avatar
    Join Date
    Oct 2011
    Location
    Toledo, OH
    Posts
    1,239
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Chats
    956
    It won't make a difference on a non-GXP, because GXP suspension is different, but yeah wider in front on a FWD. Being in Detroit, it's entirely possible you have aftermarket Alcoa "GXP" rims, as they are all over craigslist for a good price.


    GTP says "Widetrack" too. Does your info center have an "Engine Boost" page?
    2005 GTP - Graystone Metallic|SPO grills&spoiler/SE lip/Carbon Fiber INFERNO hood
    7"
    Spectre|3.4 MPS|42lb Blue Giants+E85+Walbro 450lph pump
    SpeedDaddys|AL605|Vogtlands on FE3s|Vinnie's Spacers on solid lowers|Intense poly uppers|
    Dorman + Addco sway bars|Drilled/slotted rotors|Plasti-dip 17" QP2 at +27 offset
    Reply With Quote  
     

  9. #8 Re: GXP rims on a GT 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
    Join Date
    Sep 2009
    Location
    Rogers, MN
    Posts
    20,803
    Thanks (Received)
    7
    Likes (Received)
    22
    Dislikes (Received)
    0
    Chats
    82569
    245/45/18 is what you need to stay with for correct speedo read out.

    SMGPFC Member #1
    Reply With Quote  
     

  10. #9 Re: GXP rims on a GT 
    SE Level Member
    Join Date
    Nov 2018
    Location
    Detroit
    Posts
    4
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Chats
    0
    Yes. It says engine boost. Like when you hit the gas. The bar fills up. Other than that, nothing else about boost. The trunk says GT but the guy I bought it from said he replaced the trunk. What else are some signs that itís a GTP or a GT?
    Reply With Quote  
     

  11. #10 Re: GXP rims on a GT 
    GTX Level Member industrialfish's Avatar
    Join Date
    Oct 2011
    Location
    Toledo, OH
    Posts
    1,239
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Chats
    956
    The trunk has the RPO codes, so that's out.

    If it's got a supercharger, it's probably factory. Look at the intake and manifolds. Topswaps are a lot of work, you wouldn't do one and not upgrade those too. If it was sold to a dealership, the VIN wouldn't match the engine type either and might raise some flags.
    2005 GTP - Graystone Metallic|SPO grills&spoiler/SE lip/Carbon Fiber INFERNO hood
    7"
    Spectre|3.4 MPS|42lb Blue Giants+E85+Walbro 450lph pump
    SpeedDaddys|AL605|Vogtlands on FE3s|Vinnie's Spacers on solid lowers|Intense poly uppers|
    Dorman + Addco sway bars|Drilled/slotted rotors|Plasti-dip 17" QP2 at +27 offset
    Reply With Quote  
     

  12. Advertisement




Similar Threads

  1. Wtb gxp rims or aftermarket rims
    By pontiacgt500 in forum Wanted To Buy - Parts
    Replies: 1
    Last Post: 01-15-2017, 11:37 PM
  2. Rims rims and more rims for saleeeeeeee
    By GTPSHAWTY in forum For Sale - Parts
    Replies: 7
    Last Post: 09-21-2013, 11:10 PM
  3. Interested in changing my 04 grand prix gt rims for the Gxp factory rims
    By holt149 in forum Visual/Body Modifications
    Replies: 3
    Last Post: 02-21-2011, 01:41 PM
  4. 06 GP GXP Rims?
    By aries83 in forum Tires & Wheels
    Replies: 15
    Last Post: 10-26-2009, 02:41 PM
Tags for this Thread

View Tag Cloud

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •