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Old 11-28-2007, 11:58 PM
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i never understood the offset of wheels. now I do. thanks.
Old 01-08-2008, 11:24 PM
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Im looking at these Ruff wheels for my g/f's 2000 Trans Am



They only offer the rear 18x9.5 in a +45mm, +40mm, and +20mm offset. Which one do i need??

Front 18x 8.5 they offer +20mm and +30mm offset. Which one do i need for the front??
Old 01-09-2008, 08:25 AM
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Originally Posted by roadtrip120
Im looking at these Ruff wheels for my g/f's 2000 Trans Am



They only offer the rear 18x9.5 in a +45mm, +40mm, and +20mm offset. Which one do i need??

Front 18x 8.5 they offer +20mm and +30mm offset. Which one do i need for the front??
Rear 9.5" with a 40 mm offset. (45 mm would work too)

Front 8.5 with a 30 mm offset.

You could run four 9.5's with the 40 mm offset. . . . Just FYI.
Old 02-02-2008, 04:10 PM
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http://www.tiresdelivered.com/F11781062.htm

I have a 02 T/A. Would these fit my car? Will they stick out? If so, how far? Also do you think they would look good on my car. It is silver. Thanks
Old 02-02-2008, 07:10 PM
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Originally Posted by kronik
http://www.tiresdelivered.com/F11781062.htm

I have a 02 T/A. Would these fit my car? Will they stick out? If so, how far? Also do you think they would look good on my car. It is silver. Thanks

The 10" with a 38 mm offset fits out back, but not up front.
Old 02-22-2008, 12:22 AM
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I have 17x9.5 TT2's on the front of my TA now, but they're in bad shape and need to be replaced. I saw 15x4 TT2's on Summit and was thinking about doing those as a front rim to match my rear 17X11 TT2's. The 15x4's have 1.5 inches of backspacing and a -25.00 offset with the correct bolt pattern. Any issues with those fitting the front. I have seen alot of guys are buying the 15x4 Summit stars which have 1.75 backspacing and -19.00 offset. Thanks for any info.
Old 02-22-2008, 12:29 AM
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I have a 2002 camaro ss i'm going to have custom wheels made,all these numbers for offsets have made me confused and crosseyed. I'm going with 18x9 and 18x10 what offsets would work and fit/look best for my car?Thanks for the help i'm sure this question has probably been asked a hundred times,but i got tired of reading all the posts.
Old 02-22-2008, 08:05 AM
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Originally Posted by RG02SS
I have a 2002 camaro ss i'm going to have custom wheels made,all these numbers for offsets have made me confused and crosseyed. I'm going with 18x9 and 18x10 what offsets would work and fit/look best for my car?
9" for the front ~ 35 mm

10" for the rear ~ 40 mm

Thanks for the help i'm sure this question has probably been asked a hundred times,
Your welcome, and yes it has . . .

but i got tired of reading all the posts.
how do you think I feel answering the questions?
Old 02-22-2008, 11:28 AM
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I feel your pain,but thank you very much!!! I dont think i have much room for error so its greatly appreciated.If i can id like to ask one more question.When i go to order my rims is the offsets enough info for them or will i need to know back spacing also?Sorry to bug.

Last edited by RG02SS; 02-22-2008 at 11:35 AM.
Old 02-22-2008, 05:24 PM
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I've always wondered about this
Old 02-23-2008, 09:07 AM
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Originally Posted by RG02SS
I feel your pain,but thank you very much!!! I dont think i have much room for error so its greatly appreciated.If i can id like to ask one more question.When i go to order my rims is the offsets enough info for them or will i need to know back spacing also?Sorry to bug.

You should not need to know both, since the measurements are related.

I believe most street wheels are sold using offset and drag wheels are based on back space.
Old 02-23-2008, 09:38 AM
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Thank you!Now maybe I wont make a three thousand dollar mistake.
Old 04-26-2008, 01:18 PM
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ok. i bought some 17x11 tt2's from tom a year ago but dont remember the backspacing and offset. but not im gonna run a 9" narrower 2" on each side. what would the offset be if i wanted the tire in the same spot with the new rear end?
Old 04-26-2008, 04:05 PM
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Originally Posted by silverbandit0996
ok. i bought some 17x11 tt2's from tom a year ago but dont remember the backspacing and offset. but not im gonna run a 9" narrower 2" on each side. what would the offset be if i wanted the tire in the same spot with the new rear end?
11" TT2's have a positive 46 mm offset . . . 2" equals 50.8 mm

Take 46 mm minus 50.8 mm and you get a NEGATIVE 4.8 mm, and there is your new needed offset.
Old 04-28-2008, 01:10 PM
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thanks so much.
Old 01-19-2009, 06:58 PM
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Hey guys i gotta question for ya,

I'm looking to purchase some 18x9.5 zo6 rims with a 57mm offset. Will these rims fit on an 02 trans am with a pro kit on it???

thanks alot! feel free to pm me or email me at lancesomero2006@hotmail.com

thanks again!
Old 04-02-2009, 11:06 PM
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Default Looking at some ruff racing 278

Looking at some ruff racing 278's, fronts are 19x8.5 35mm offset and 19x9.5 45mm offset. I am pretty sure they will fit fine but needed to get a professional opinion. thanks in advance.
Old 04-30-2009, 11:20 AM
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I would also like to know if the 45mm offset on a 19x9.5 rim will work. Looking at a set of HP Evo II.

Thanks
Old 05-04-2009, 05:05 PM
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I'm guessing this wont work, but what would it look like with a 18x8.5 +40, and 18x9.5 +20(BMW wheels)? Having to use some temp wheels, and I know someone who has those for cheap until I can afford my tires for the wheels I'm getting.
Old 05-05-2009, 02:16 PM
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Originally Posted by Prost79c
Looking at some ruff racing 278's, fronts are 19x8.5 35mm offset and 19x9.5 45mm offset. I am pretty sure they will fit fine but needed to get a professional opinion. thanks in advance.
Yes those will be fine.


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