I need help figuring out if my wheels will fit my gbody

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Sinsics

Not-quite-so-new-guy
Jan 9, 2023
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I have a 1984 grand Prix that I want to make into a widebody,I want to get wheels that stick out but Will a 15x10 negative 44 or negative 39 Offset wheel fit my car without rubbing? /my car is not c notch'd I also want to get a 255/60R15 102V Tire
 

565bbchevy

Geezer
Aug 8, 2011
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How are you going about making it a wide body with some custom wheel flares or actual metal work?
Negative offset is going to push the wheel way out.
Also the 255/60R15 is not recommended for rims over 9" wide.
wheeloffsetbackspacing.png
 
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Sinsics

Not-quite-so-new-guy
Jan 9, 2023
6
1
3
How are you going about making it a wide body with some custom wheel flares or actual metal work?
Negative offset is going to push the wheel way out leaving you with about 2.5" backspace.
Also the 255/60R15 is not recommended for rims over 9" wide.
wheeloffsetbackspacing.png
Im going to make custom fender flares
The with doesnt really matter im okay with anything over 8" width but i just want them to stick out idealy with anything that will allow me to get negative 39 or 44 offset but i dont know what that would be without it rubbing
 

mclellan83

Comic Book Super Hero
Jun 27, 2017
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Interested to see what you come up with, I liked the widebody Regal that was floating around Facebook a few years ago. My preference is to go bigger than 15" wheels which would also probably give you more options in wheels
 

scoti

Royal Smart Person
Sep 5, 2019
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Texas
I have a 1984 grand Prix that I want to make into a widebody,I want to get wheels that stick out but Will a 15x10 negative 44 or negative 39 Offset wheel fit my car without rubbing? /my car is not c notch'd I also want to get a 255/60R15 102V Tire
15x10 w/-44 offset = 3.75"BS. Def going to stick out beyond the original body opening edge.
15x10 w/-30 offset = ~4.25BS. That combo would be ~.500" closer to the frame vs. the -44 offset combo.
 
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79 USA 1

Royal Smart Person
Sep 2, 2011
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Cheektowaga, New York
For what it is worth I have a 79 Monte Carlo with 15 x 8.5 American Racing Torq Thrust wheels, 3.81 inch back space -24.00mm offset. Plenty of frame clearance but just rubs the fender lip on the drivers side only. This with a 255/60r/15 rear tire. While the 255 is wide in appearance with this stock fender set up, you may need to look more to like a 295/50r/15 and a 10 + wide wheel to fill out a wide body look.
Below is my 79 on the 255/60's and the 8.5 wide wheel.

20220604_132334.jpg
 
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