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  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech

tire to fender lip clearance, whats considered min?

  • Thread starter Thread starter rsweld
  • Start date Start date Nov 24, 2010
R

rsweld

Member
Dec 30, 2009
64
0
6
St. Marys, GA.
Nov 24, 2010
#1
  • Nov 24, 2010
  • #1
On my 65 vert, after carefully measuring the fender lip (inside edge) to inner wheel house (11") and the wheel moumting surface (brake drum) to inner wheel house (6.75") If I use a 14 X7 Styled Steel Wheel for the 65 from Mustangs unlimited with 4.75" backspace this leaves 2" from outter wheel edge to fender lip edge and from inner wheel edge to inner wheel house. This puts the wheel dead nuts center of the wheel well, now if i add a 24560R-14 BFG with a side wall width of 9.8" on a 7" rim this would be 1.4 inches byond each edge of the wheel. with that said if I subtract 1.4" from the cal. 2" wheel clearance this will leave .600" (nearly 5/8") clearance from the tire side wall to fender lip and tire sidewall to inner wheel house putting the Tire dead nuts center of the wheel well. The main reason I want a 245/60R14 on the rear is 2 fold, I want wider on the rear for the 60-70's retro look and a 245/60R14 tire OD is .200" taller than the 205/70R14 I am running on the front. This is as close as I can get to having front and rear tire the same OD which is what I am shooting for.

Does anyone agree or disagree that 5/8" is enough tire clearance? Any input would be greatley appreciated.

Ron B.
 

tx65coupe

Active Member
Nov 29, 1999
1,551
1
37
Nov 25, 2010
#2
  • Nov 25, 2010
  • #2
I have 235 60 15 on the rear of mine. I think that the 245 may be a bit too wide, but maybe not.
 

Az Pete

10 Year Member
Mar 30, 2005
711
18
49
Panama City, Fl.
Nov 25, 2010
#3
  • Nov 25, 2010
  • #3
If it does not hit/rub under cornering or on hard bumps when loaded....minimum difference needed varies based on suspension action....it should be ok. Just hope you measurements are good.
 

dagenham

Member
May 23, 2010
100
3
19
Duncannon PA
Nov 25, 2010
#4
  • Nov 25, 2010
  • #4
I have 245/60/14 on the rerar of my '66 coupe and dont have any problems. I dont know what the backspacing is on my wheels though. It's been way too long since I put them on Plus I have an old set of Superior wheels and not factory wheels.
 
R

rsweld

Member
Dec 30, 2009
64
0
6
St. Marys, GA.
Nov 25, 2010
#5
  • Nov 25, 2010
  • #5
dagenham

what size tires are you running on the front and do you have any photos (sideshot) I would be really interested to see what it looks like.

Ron
 
R

rsweld

Member
Dec 30, 2009
64
0
6
St. Marys, GA.
Nov 25, 2010
#6
  • Nov 25, 2010
  • #6
dagenham

Do you have any suspension mods or fender mods ore are you completely stock?

Ron
 

rbohm

Founding Member
Apr 12, 2002
6,698
550
204
tucson,az
Nov 26, 2010
#7
  • Nov 26, 2010
  • #7
5/8" clearance at full bump should be plenty of clearance. that will allow the leaf springs to deflect the normal 1/4", and it will also allow the sidewalls to deflect a bit also.
 
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