TTII 17x9.5 3rd gen offset, do they exist?
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Joined: Nov 2005
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From: Indianapolis
Car: 1991 Z28 (sold)
TTII 17x9.5 3rd gen offset, do they exist?
do 17x9.5 TTII wheels with correct 3rd gen rear offset exist? simple yes or no is all i need. really wasnt sure where to post this because it isnt really a fitment question, just an availibility question
thanks!
thanks!
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From: WINDSOR, CO
Car: 91 Z28, 87 SC, 90 IROC, 92 RS
Engine: LS1, 305 TPI, L98, NADA
Transmission: T56, 700r4's, and NADA
Axle/Gears: 3.89, 3.42, 3.23, NADA
Re: TTII 17x9.5 3rd gen offset, do they exist?
As I remember the 17x9.5 tt2's can be purchased for the thirdgens, but it is not a standard backspacing that they offer, so they consider it a custom build and charge a bunch more for them. When I was still selling wheels the custom built tt2's were a big PITA, and there there no returns, so some shops don't even offer to order the custom back spaced wheels.
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From: Indianapolis
Car: 1991 Z28 (sold)
Re: TTII 17x9.5 3rd gen offset, do they exist?
yeah someone told me they exist, but i couldnt find them anywhere. do u know how much more they are for custom? i just need 2 for the rear. 17x8 is fine up front
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From: Chesterfield, Indiana
Car: 1991 Z28 Camaro
Engine: 5.7
Transmission: Jasper 700R4 Stage II
Axle/Gears: 3.23 For Now
Re: TTII 17x9.5 3rd gen offset, do they exist?
I'll sell ya a set 17X8's buddy....you'd never know the difference with the
P275/40's on all fours...
P275/40's on all fours...
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From: WINDSOR, CO
Car: 91 Z28, 87 SC, 90 IROC, 92 RS
Engine: LS1, 305 TPI, L98, NADA
Transmission: T56, 700r4's, and NADA
Axle/Gears: 3.89, 3.42, 3.23, NADA
Re: TTII 17x9.5 3rd gen offset, do they exist?
I think that Chevy High Performance did a suspension wheel and tire article a few years back (maybe like 4), and put a Hotchkis suspension package on a 91-91 z28, then showed the improvement the size of wheels and tires had on G-force readings.... anyways, this article they used 17x9.5 tt2's and gave out the backspacing and offset measurement for front and rear wheels along with pricing (at that time).
I don't know if that article is in an archive here, or anyone else has it, but that might help you, OR you could just e-mail American Racing!!!
I don't know if that article is in an archive here, or anyone else has it, but that might help you, OR you could just e-mail American Racing!!!
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Car: 1991 Camaro RS
Engine: 350 bored .30 over
Axle/Gears: Posi 342
Re: TTII 17x9.5 3rd gen offset, do they exist?
They are actually a custom order wheel indeed. I just mounted a pair on the rear of my car. They are 9.5 with a 5.5 backspace. You can find them at Summit.
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From: sweden
Car: GTA -89
Engine: Blown 415"
Transmission: 4L80E
Axle/Gears: Strange 12-bolt
Re: TTII 17x9.5 3rd gen offset, do they exist?
Also looking for TT2 17"
From what I have found here on thirdgen
Rear: 17*9,5 5,5"BS 6.0 mm Offet (+?)
summit ARE-C4057956155
Front: 17*8 4,75"BS 0 mm offset
cant find them at summit?
From what I have found here on thirdgen
Rear: 17*9,5 5,5"BS 6.0 mm Offet (+?)
summit ARE-C4057956155
Front: 17*8 4,75"BS 0 mm offset
cant find them at summit?
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From: Readsboro, VT
Car: 85 IROC-Z / 88 GTA
Engine: 403 LSx (Pending) / 355 Tuned Port
Transmission: T56 Magnum (Pending) / T5
Axle/Gears: 3.42 / ?
Re: TTII 17x9.5 3rd gen offset, do they exist?
considering that virtually every RWD GM vehicle from the 80s and back used the same offset wheels, it really disappoints me that these aren't one of their standard offerings. Everybody slaps the 8" wheels onto their muscle car instead of the wider stuff. Although I have to admit, that I like the "fat tire" look of a 275 on an 8" wheel better than a 275 on a 9.5" wheel.
Joined: Jul 1999
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From: Stavanger area, Norway
Car: 86 IROC Convt
Engine: 305TPI
Transmission: TH700R4
Re: TTII 17x9.5 3rd gen offset, do they exist?
I had to custom order mine when I got them. If you are running 9,5"s all around - be sure to double check your clearance between the inside of the rim and tie rod. I would've had conflict on mine if I had gone 5.5" up front - so I went 5.25" front and 5.5" rear.
Also, if you have - or are planning on - a C5 front brake swap, the spokes of a 17" TT2 wheel WILL conflict with the calipper and requires modifications to the calipper and/or spacer. So you'll need to compensate for that on your backspacing if you are gonna have a 17" TT2 and C5 brake combo.

Ken
Also, if you have - or are planning on - a C5 front brake swap, the spokes of a 17" TT2 wheel WILL conflict with the calipper and requires modifications to the calipper and/or spacer. So you'll need to compensate for that on your backspacing if you are gonna have a 17" TT2 and C5 brake combo.

Ken
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From: Milan, MI
Car: 1999 Z28
Engine: LS1
Transmission: A4
Re: TTII 17x9.5 3rd gen offset, do they exist?
I think that Chevy High Performance did a suspension wheel and tire article a few years back (maybe like 4), and put a Hotchkis suspension package on a 91-91 z28, then showed the improvement the size of wheels and tires had on G-force readings.... anyways, this article they used 17x9.5 tt2's and gave out the backspacing and offset measurement for front and rear wheels along with pricing (at that time).
I don't know if that article is in an archive here, or anyone else has it, but that might help you, OR you could just e-mail American Racing!!!
I don't know if that article is in an archive here, or anyone else has it, but that might help you, OR you could just e-mail American Racing!!!
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From: WINDSOR, CO
Car: 91 Z28, 87 SC, 90 IROC, 92 RS
Engine: LS1, 305 TPI, L98, NADA
Transmission: T56, 700r4's, and NADA
Axle/Gears: 3.89, 3.42, 3.23, NADA
Re: TTII 17x9.5 3rd gen offset, do they exist?
NO not the one I was talking about, but I do remember that car... Tbi with some real grunt. The article I was talking about was much older than that, and it was a black 91-92 Z28, probably dating myself here.
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From: Boosted Land
Car: 92 Z28
Engine: Boosted LSX
Re: TTII 17x9.5 3rd gen offset, do they exist?
I think that Chevy High Performance did a suspension wheel and tire article a few years back (maybe like 4), and put a Hotchkis suspension package on a 91-91 z28, then showed the improvement the size of wheels and tires had on G-force readings.... anyways, this article they used 17x9.5 tt2's and gave out the backspacing and offset measurement for front and rear wheels along with pricing (at that time).
I don't know if that article is in an archive here, or anyone else has it, but that might help you, OR you could just e-mail American Racing!!!
I don't know if that article is in an archive here, or anyone else has it, but that might help you, OR you could just e-mail American Racing!!!
I have both mags still...
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From: WINDSOR, CO
Car: 91 Z28, 87 SC, 90 IROC, 92 RS
Engine: LS1, 305 TPI, L98, NADA
Transmission: T56, 700r4's, and NADA
Axle/Gears: 3.89, 3.42, 3.23, NADA
Re: TTII 17x9.5 3rd gen offset, do they exist?
Yup that is the one!!! Pretty sweet numbers from a third gen!!!!
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From: Boosted Land
Car: 92 Z28
Engine: Boosted LSX
Re: TTII 17x9.5 3rd gen offset, do they exist?
Uuuhhuu, This will show my age also... When they did that Mag. 1st Thing I did was called up Summit Racing and ordered EVERYTHING they had on the car for suspention. The Only diff road I took was Koni's instead.
Now Im gonna have to dig both of those mags out. just to check it out again.
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From: Beautiful BC
Car: '88 IROC-Z / '91 Z28 / '91 GTA
Engine: LT4 Hot Cam 305 / L98 355 / MR 383
Transmission: 5-spd / 700R4 / 700R4
Axle/Gears: 3:45 / 3:23 / 3:23
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