4th Gen rim question
Thread Starter
Senior Member
Joined: Feb 2009
Posts: 660
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From: N. Virginia
Car: 1988 Firebird - 1998 Z28
Engine: 2.8 - LS1
4th Gen rim question
Just a simple question, How well would fourth gen Z28 16x8 rims fit on an 87? I already tried the search function but came up empty handed... 
I ask this because in a few days I may be buying a complete set, but if they don't fit I don't want to waste my money.
Any info or pics would be GREATLY appreciated.
Thanks,
V6F1R3BRD

I ask this because in a few days I may be buying a complete set, but if they don't fit I don't want to waste my money.
Any info or pics would be GREATLY appreciated.

Thanks,
V6F1R3BRD
Thread Starter
Senior Member
Joined: Feb 2009
Posts: 660
Likes: 0
From: N. Virginia
Car: 1988 Firebird - 1998 Z28
Engine: 2.8 - LS1
Re: 4th Gen rim question
I found some info..
CAMARO 82-92 15x7 5x120.7 12x1.5 70.3 L
CAMARO 93-UP 16x7.5 5x120.7 12x1.5 70.3 H
Same lug, same stud size, same hub diameter, but the offset for 82-92 says L... And H for 93-up.
I am clueless to what that means lol
Also i read that the front wheels on a 3rdgen are 0mm offset, and the rear is 16mm.. Correct?
By what i can gather 4th gen rims "should" stick out a little farther...?
CAMARO 82-92 15x7 5x120.7 12x1.5 70.3 L
CAMARO 93-UP 16x7.5 5x120.7 12x1.5 70.3 H
Same lug, same stud size, same hub diameter, but the offset for 82-92 says L... And H for 93-up.
I am clueless to what that means lol

Also i read that the front wheels on a 3rdgen are 0mm offset, and the rear is 16mm.. Correct?
By what i can gather 4th gen rims "should" stick out a little farther...?
Last edited by V6F1R3BRD; Jul 14, 2009 at 01:31 AM.
Member
Joined: Sep 2005
Posts: 275
Likes: 1
From: Augusta,GA
Car: 1992 Z03 RS
Engine: (L03) 305TBI
Transmission: TH-700R4
Axle/Gears: bone stock
Re: 4th Gen rim question
Yes, front and rear wheels have different offset. Thats why rear wheels are branded "rear". Based off my knowledge spacers are required when running 4th gen wheels. You may want to PM Doc for more info. He has some on his 84. This is the link to his public profile with a picture of the wheels on the car.
https://www.thirdgen.org/forums/member.php?u=43423

https://www.thirdgen.org/forums/member.php?u=43423
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iTrader: (12)
Joined: Jul 1999
Posts: 12,212
Likes: 13
From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: 4th Gen rim question
Where is Stephen when i need him... 


Your gonna give me a big head...


2" adapters, all the way around, or 2" front, 2.5" rear, to give the rear a more muscular look & still under the fender lips.
I recommemnd the 2"/2.5"...The looks are well worth it.
Member
Joined: Jul 2003
Posts: 148
Likes: 0
From: Baton Rouge, La
Car: 88 sport coupe convert
Engine: 305 tb
Transmission: auto
Re: 4th Gen rim question
I'm running 4th gen z28 chrome 16" wheels on my 88. Using the 2" adaptors. Had them on about a year with no problems.
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