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    Results 1 to 11 of 11

    Thread: 73 bird

    1. #1
      Join Date
      Nov 2004
      Location
      dayton ohio
      Posts
      166
      Country Flag: United States

      73 bird

      anybody put 255-45-17 on 17x8 wheels with 4" backspace on the front of a second gen bird? how do they fit? rubbing? any photos? im trying to avoid the cost of custom backspacing. thanx joel

    2. #2
      Join Date
      Nov 2002
      Location
      Georgetown,TX
      Posts
      2,557
      I think that backspacing is going to cause you problems,Joel. Better spend a little extra and get the right numbers.

    3. #3
      Join Date
      Aug 2004
      Location
      Montgomery, IL
      Posts
      359
      Country Flag: United States

      17 X 8's

      I have 17X8's all around with 5" of backspace up front and 4" in the rear. I can't say that I am real happy with either. I tried switching them around and it didn't really help the way the car looks. I didn't drive it but it looks like the 4" offsets would rub on the fronts. I'm going to end up with a 1/2" spacer on the fronts and probably swapping the rears out for 17 X 9.5's.

    4. #4
      Join Date
      Oct 2004
      Location
      Illinois
      Posts
      186
      ZEE - If your going to run a 17 x 8 for the front I would reccomend a 4.5" Back space .

      If your running 17 X 9.5 rear Your going to have to run a 5" Backspace or the wheel will protrude past the wheelwell.

      Check out- http://community.webshots.com/user/ponchoman69
      I have some pictures of my old orange 72 bird with (17x8 front 4.5" BS w/ 245/45)
      and (17x9 rear 4.5" BS w/ 275/50)
      A link to some pictures of my Firebirds and other toys

      http://community.webshots.com/user/ponchoman69

    5. #5
      Join Date
      Sep 2004
      Location
      Wilmington NC
      Posts
      242
      Country Flag: United States
      I am running 255/40/17's in the front with a 17x8.5 wheel with no problems.

      I'm not sure on the backspacing, I believe the wheels have a 56mm offset and I am running a 2" adapter......so if someone could do the math

      OK
      I just did the math, looks like I am running
      an 8.5 with a 4.3" BS in the front (56mm offset with a 2" adapter) and
      an 8.5 with a 3.8" BS in the rear (56mm offset with a 2.5" adapter)
      I am running a smaller offset in the rear to bring the rear tires closer to the outside edge of the rear quarter so it don't look like someone pinched its butt with the rears tucked too far in :rolleyes5


      Beebe,
      Your old car sat so high its tough to get a feeling of how it sits.
      Did you ever drop it any? Did you have issues or not then?

    6. #6
      Join Date
      Aug 2004
      Location
      Montgomery, IL
      Posts
      359
      Country Flag: United States

      Beebe

      I haven't seen you much on the PY site lately. I was expecting to see you out at Cordova a couple of weeks back.

      I already have the 17 X 8 set up front and rear. You are right, the 4.5" backspace is perfect for the front. That is why I am adding 1/2 spacers to change my 5" backspacing to 4.5. The 4" backspace in the rear is more of a concern to me as it only allows me to run a 255 50/17 (I like the look of a taller sidewall on muscle cars). I don't think the 255's are gonna' cut it with the 455, TKO600 and 3.73 gear from my 400. Looks good from the side tough.

    7. #7
      Join Date
      Aug 2004
      Location
      SoCal
      Posts
      133
      Nice to see some fellow Ponchos on the touring board!
      1965 GTO - 439ci Pontiac ,66 Tripower induction, M-20, Full GW suspension, 3:1 PS, manual Baer 13"/12" disks, 18" AR TT2 "Classics"
      2005 GTO - chrome lugs and valve caps...

    8. #8
      Join Date
      Aug 2004
      Location
      Austin, TX.
      Posts
      322
      Quote Originally Posted by tripower
      Nice to see some fellow Ponchos on the touring board!
      Got any pics of your ride, I love old goats!!

      SW



    9. #9
      Join Date
      Oct 2004
      Location
      stanwood, wa
      Posts
      324
      I am running the tt2's on the front in 17x8 and am using the 4.5" bs on 255'sand it works great. I believe 4.5" was the standard on the stock 8" rims and would stick with that. i am also running 17x11's in the back with an edelbrock headed 455 and the tkoII 5 speed and the 315 drag radials on the back still break loose really easy.

    10. #10
      Join Date
      Oct 2004
      Location
      IL/TN
      Posts
      908
      Country Flag: United States
      17X9 4 1/2" back space front and 5" rear, 255-45-17 up front and 285-40-17 car is lowered about 1 1/2" in front
      Attached Images Attached Images  
      https://www.protouringf-body.com "doing what they say can't be done"

    11. #11
      Join Date
      Aug 2004
      Location
      SoCal
      Posts
      133
      Quote Originally Posted by Streetking
      Got any pics of your ride, I love old goats!!

      SW
      Here you go!
      1965 GTO - 439ci Pontiac ,66 Tripower induction, M-20, Full GW suspension, 3:1 PS, manual Baer 13"/12" disks, 18" AR TT2 "Classics"
      2005 GTO - chrome lugs and valve caps...




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