If I was to purchase aftermarket wheels, would the offset have to match the stock wheel offset of 50mm? What kind of wiggle room is there if any? Maybe 40mm offset? I do know that the bolt pattern must match haha! Thanks for any help!
Member
If I was to purchase aftermarket wheels, would the offset have to match the stock wheel offset of 50mm? What kind of wiggle room is there if any? Maybe 40mm offset? I do know that the bolt pattern must match haha! Thanks for any help!
Senior Member
10mm is nearly half an inch. Ideally you will use the same offset, although a larger offset can be compensated with a spacer to make up the difference.
Altering the offset will change the scrub radius, which can have an adverse effect on handling and braking forces on the suspension. Randomly changing the wheel offset is not something I would do if you care about how the car handles and behaves under braking.
Last edited by lifespeed; 09-29-2014 at 07:26 PM.
Lifespeed
2004 Silver Birch Marauder 130K miles
Wilwood Aero6 F, NMDP R brakes, Penske 7500DA shocks, Hypercoil 600lbs F and Grand Marquis R air springs, Addco tubular sway bars, Metco control & Watts, 31 sp axles, Stainless Works cat-back exhaust, Lidio tune, American Racing AR883 9.3" 50mm F 10" 59mm R 20" wheels, Pirelli P-Zero 265/35-20, 275/40-20 tires
Coming soon: Livernois 5.0L stroker, ADTR/Vortech V2 intercooled SC, Silverfox trans and Circle D converter
BiRDMAN
I use 2010 Mustang GT 18x8 wheels for winter use, offset is 44mm.
2004 Silver Birch 300B
Build date:9/29/2003, Adopted on 12/02/05
Exhaust by Greg
13.630 @ 100.49 mph (11/21/10)
2015 Ford Focus SE Sport FWD
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1989.5 Ford Mustang 5.0 LXsport
Member
Ok thanks for the input. I was looking at those American Racing Torqthrust M's. I think they would look awesome but the offset is 0mm so I'm guessing I couldn't make them work.
Back to Ridin' Clean
I think anything above +35mm, you're fine without them sticking out too far.
There's several calculators out there that will tell you how much over stock a wheel will stick out even with tires, then just go out and measure roughly where the new setup will be. Just search wheel size calculator online.
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Member
Ok so am I correct in assuming that a wheel with these specifications will fit?: Details:
Size: 18x8
Bolt Pattern: 5x120
Offset: +40mm
Backspace: 6.07"
Hub Bore: 72.6mm
Senior Member
That will shift your scrub radius and wheel 10mm outboard.Originally Posted by PB Marauder
Lifespeed
2004 Silver Birch Marauder 130K miles
Wilwood Aero6 F, NMDP R brakes, Penske 7500DA shocks, Hypercoil 600lbs F and Grand Marquis R air springs, Addco tubular sway bars, Metco control & Watts, 31 sp axles, Stainless Works cat-back exhaust, Lidio tune, American Racing AR883 9.3" 50mm F 10" 59mm R 20" wheels, Pirelli P-Zero 265/35-20, 275/40-20 tires
Coming soon: Livernois 5.0L stroker, ADTR/Vortech V2 intercooled SC, Silverfox trans and Circle D converter
Back to Ridin' Clean
Negative. You need 5x114.3 as a bolt patern. Otherwise I would say everything else looks good.
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'04 Marauder #357 of 3213 - Built and Eaton swapped - "MERCD"
'21 F150 XLT 5.0 Sport
'18 Chevy Malibu Redline
'15 Mustang GT, performance package
'01 BMW 740i M-Sport, manual swapped
'97 Lincoln Town Car (black on black)
'10 Harley Ultra Limited
'08 Kawasaki ZX6R
'03 Grand Marquis(sold)
Member
Thanks for the help!
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4. The 1998 P71 Jinbei. (Sold)
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Senior Member
+1 on the wrong bolt pattern
5X4.5 / 5X114.3 is correct.
Exact offset you are going for will change with wheel width. A wider wheel will require a more positive offset for correct fitment.
You're looking for wheels that are considered "high positive offset" for proper fitment.
If you shop for wheels for a 2005-2009 mustang you'll find the wheels sized to fit ideally.
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