4th Gen Rear Quick Question
Thread Starter
Junior Member
iTrader: (1)
Joined: May 2001
Posts: 58
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From: Columbus, Ohio, USA
Car: 86 Z28
Engine: 305TPI stock
Transmission: TH700R stock
4th Gen Rear Quick Question
If I get a 4th gen rear my stock wheels will stick out a bit, right? SO... if I get a set of 4th gen wheels will the different offset correct this and get the wheels back under my car?
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86 Z28
305TPI
Stock, but with potential!
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86 Z28
305TPI
Stock, but with potential!
Supreme Member
Joined: Jul 1999
Posts: 18,457
Likes: 16
From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
Yes.
Problem is, 4th gen wheels don't fit on the fronts of these cars, unless you add spacers; so you'll have 2 different kinds of wheels. Unless you're planning on buying aftermarket ones, in which case you would just get 2 with one offset and 2 with the other.
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"So many Mustangs, so little time..."
ICON Motorsports
Problem is, 4th gen wheels don't fit on the fronts of these cars, unless you add spacers; so you'll have 2 different kinds of wheels. Unless you're planning on buying aftermarket ones, in which case you would just get 2 with one offset and 2 with the other.
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"So many Mustangs, so little time..."
ICON Motorsports
Thread Starter
Junior Member
iTrader: (1)
Joined: May 2001
Posts: 58
Likes: 0
From: Columbus, Ohio, USA
Car: 86 Z28
Engine: 305TPI stock
Transmission: TH700R stock
Not really. I was just looking into a new rear and i really like the look of the SS wheels. I was just curious how it might work out.
Supreme Member
Joined: Mar 2001
Posts: 2,047
Likes: 0
From: The State of Hockey
Car: 1987 Trans Am GTA
Engine: Miniram'd 383, 24X LS1 PCM
Transmission: TH700R4, 4200 stall
Axle/Gears: 9", 4.33:1
The 4th gen rear is 3 inches longer overall so that means the tires are each 1.5 inches farther out than they would be with a 3rd gen rear. If you buy the spacers for the front and install a 4th gen rear end, you can buy any wheels that are designed for 4th gens (aftermarket companies sell a lot more 4th gen wheels than 3rd gen wheels!!) and they will fit properly in the wheel wells.
So when I started looking for some 17x9s, I found a bunch of 4th gen ones that I liked but none of them were made for stock 3rd gen offsets. I also had the 2.77 rear axle so I combined my plans and got a 4th gen 3.42 rear axle and solved one problem and half of another one. All I need is spacers and I'm set for 4th gen wheels. I just ran out of money for this year.....
.
As for how the wheels look with the 4th gen rear axle and 3rd gen wheels, check out my website. I think the main page has a picture that you can see a little bit of how they stick out slightly. I guess it doesn't look all that bad but I don't like it very much and am planning on some 50mm offset (4th gen) 17x9 5-spokes with 275/40/ZR17s as soon as possible (Spring).
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1987 GTA L98 MD8
355, TFS Heads, LT4 Hot Cam
My GTA
The Minnesota F-body Club
So when I started looking for some 17x9s, I found a bunch of 4th gen ones that I liked but none of them were made for stock 3rd gen offsets. I also had the 2.77 rear axle so I combined my plans and got a 4th gen 3.42 rear axle and solved one problem and half of another one. All I need is spacers and I'm set for 4th gen wheels. I just ran out of money for this year.....
.As for how the wheels look with the 4th gen rear axle and 3rd gen wheels, check out my website. I think the main page has a picture that you can see a little bit of how they stick out slightly. I guess it doesn't look all that bad but I don't like it very much and am planning on some 50mm offset (4th gen) 17x9 5-spokes with 275/40/ZR17s as soon as possible (Spring).
------------------
1987 GTA L98 MD8
355, TFS Heads, LT4 Hot Cam
My GTA
The Minnesota F-body Club
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