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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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Backspacing and offset for 99 Mustang GT cobra wheels polished/painted

  • Thread starter Thread starter 1993SSP
  • Start date Start date Oct 22, 2006

1993SSP

Founding Member
Sep 5, 2001
1,194
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37
Ky
Oct 22, 2006
#1
  • Oct 22, 2006
  • #1
Anyone have the specs for the cobra wheel on the 99 Mustangs, they came in 5 spoke either polished or painted sliver. I need the backspacing and offset
 

MikeC

Founding Member
Aug 1, 2002
240
0
16
SLC, UT
Oct 23, 2006
#2
  • Oct 23, 2006
  • #2
They are 17x8 with 5.75" BS, don't know offset.
 

1993SSP

Founding Member
Sep 5, 2001
1,194
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37
Ky
Oct 23, 2006
#3
  • Oct 23, 2006
  • #3
I need the offset more than anything. I have the 5 lug conversion and used a 94 model rear end in my car, trying to make sure a set of wheels will work before I buy them
 

MikeC

Founding Member
Aug 1, 2002
240
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SLC, UT
Oct 23, 2006
#4
  • Oct 23, 2006
  • #4
They will work with the SN95 axles. Actually I think they look better with the longer SN95 axles than stock length Fox axles. They fill the wheel well out better. The M2300K Cobra brake kit recommends 17x8 wheels with 5.75 inch BS, such as any 94-04 17x8 inch Mustang wheel (Cobra and GT). FYI: The 03-04 17x9 Cobra wheels will stick out too far and hit the fender lip.
 

1993SSP

Founding Member
Sep 5, 2001
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Oct 23, 2006
#5
  • Oct 23, 2006
  • #5
Im tryin to figure out if i will be ok with the ROH ZS 17x8.5 on my fox body with the 94 model rear end installed
 

MikeC

Founding Member
Aug 1, 2002
240
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16
SLC, UT
Oct 23, 2006
#6
  • Oct 23, 2006
  • #6
Don't know about the ROH wheels. Why are you asking about 99 Cobra wheels then?
 

1993SSP

Founding Member
Sep 5, 2001
1,194
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37
Ky
Oct 23, 2006
#7
  • Oct 23, 2006
  • #7
I have the 99 cobra wheels, needing the offset spec so I can enter that info into a wheel offset calculator to make sure the ROH's will fit
 

MikeC

Founding Member
Aug 1, 2002
240
0
16
SLC, UT
Oct 23, 2006
#8
  • Oct 23, 2006
  • #8
If you have the Cobra wheels you can measure the offset. Put a straight edge across the back of the rim from side to side. Measure down from the straight edge to the mating flange. Subtract 5.75 inch from the measurement you just got and that is the offset. If the measurement from the straight edge to the flange is larger that 5.75, its a positive offset. If it's smaller, then it's a negative offset.
 

1993SSP

Founding Member
Sep 5, 2001
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Oct 24, 2006
#9
  • Oct 24, 2006
  • #9
Thanks, I'll get the measurement this weekend and go from there
 

Snikt89GT

New Member
Sep 6, 2006
264
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0
Deland, Florida
Oct 24, 2006
#10
  • Oct 24, 2006
  • #10
Or just go to any website on internet and look up the offset for any FMS wheel? Tirerack, probably fordracingparts.com, etc..
 

1993SSP

Founding Member
Sep 5, 2001
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37
Ky
Oct 24, 2006
#11
  • Oct 24, 2006
  • #11
Says the backspacing is 5.72. but does not give the offset
 

Snikt89GT

New Member
Sep 6, 2006
264
1
0
Deland, Florida
Oct 24, 2006
#12
  • Oct 24, 2006
  • #12
yes it does.


From tirerack's site:

SVT 99 Cobra Silver

Finish Shown: Silver Painted

Size Selected: 17x8
Price: $159 (each)
Estimated Availability: In Stock
Recommended Tire Size: 255/45-17
Wheel Offset: +30mm
** Lightweight: 22.5 lbs. **


Additional Specs

Bolt Pattern: 5-114
Finish Warranty: None
Country of Origin: USA
Construction Type: 1pc. Forged
 

1993SSP

Founding Member
Sep 5, 2001
1,194
0
37
Ky
Oct 24, 2006
#13
  • Oct 24, 2006
  • #13
thanks, I only checked the fordmotorsport site, dummy me
 
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