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65 Mustang Back Tires Rubbing

  • Thread starter Thread starter JeffMustang65
  • Start date Start date Aug 15, 2012
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JeffMustang65

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Aug 13, 2012
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Aug 18, 2012
#21
  • Aug 18, 2012
  • #21
Do you think air shocks are junk?
 

JeffMustang65

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Aug 13, 2012
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New York
Aug 18, 2012
#22
  • Aug 18, 2012
  • #22
Hey iskwezm, what brand of shock are you using in the rear of your car? Nice car!
 

horse sence

15 Year Member
Nov 29, 1999
12,274
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Wile Coyote's stunt double
Aug 18, 2012
#23
  • Aug 18, 2012
  • #23
JeffMustang65 said:
I actually DO have air shocks on the car. Are they the problem? I thought it would be good to have air shocks to adjust the rear ride height. If air shocks are junk, what brand of shock would you recommend?
Click to expand...
the problem with air shocks is they take all the load off the leafs and place it directly on the rear bracing under the car ,so all the rear weight is held up just by the shocks and will eventualy crack the shock crossmember or worse push the shocks through the crossmember i have seen this, it will also crack the floor through the oaval holes
were the top shock stud is
 

iskwezm

10 Year Member
May 24, 2005
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Rowland Heights,California
Aug 19, 2012
#24
  • Aug 19, 2012
  • #24
JeffMustang65 said:
Hey iskwezm, what brand of shock are you using in the rear of your car? Nice car!
Click to expand...
Thanks, I had air shocks for many years.I never had any cracking issues but i reinforced the sheet metal around the top mount anyway. Now i have air ride bags/shocks on the rear
 

JeffMustang65

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Aug 13, 2012
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Aug 20, 2012
#25
  • Aug 20, 2012
  • #25
iskwezm said:
Thanks, I had air shocks for many years.I never had any cracking issues but i reinforced the sheet metal around the top mount anyway. Now i have air ride bags/shocks on the rear
Click to expand...
Do you like the air ride bags? Does that mean you can adjust the ride height? Sounds expensive.
 

iskwezm

10 Year Member
May 24, 2005
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Rowland Heights,California
Aug 20, 2012
#26
  • Aug 20, 2012
  • #26
Aire bags arent as bouncy as air shocks so it smore controlled. I think they cost me about $650 when i got them.

But the problem seems to be your leafs(and the wheel offset). Are they the original leafs?
 

JeffMustang65

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Aug 13, 2012
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Aug 21, 2012
#27
  • Aug 21, 2012
  • #27
The wheel opening width must be about 2 inches, right? Won't all wheels come in contact with the edge if the body drops far enough to contact the wheel? If the offset on the wheel is enough to put it inside the wheel lip, wouldn't it look terrible tucked 2 inches inside the back quarter opening? The leafs are probably 20 years old. The previous owner had the long extension shackles because the leafs were saggy. I bought new leafs and installed the stock shackles to connect the leafs to the rear frame rails. I ordered a set of kyb monotube shocks for the rear. If that doesn't help the problem, my next thing to look at will be the leafs. If I have to replace the leafs, I wonder if stock would be fine or if I should look into something stiffer??
 

JeffMustang65

New Member
Aug 13, 2012
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Aug 21, 2012
#28
  • Aug 21, 2012
  • #28
Is there any way to test the leaf springs to see if they are worn? Looking at new leaf springs gives a pressure from 165 to 175 in/lbs. if there was a way to test them it would tell me if thats the problem instead of guessing.
 

iskwezm

10 Year Member
May 24, 2005
4,159
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79
Rowland Heights,California
Aug 21, 2012
#29
  • Aug 21, 2012
  • #29
this is a coupe with a 1"lowered" leaf and KYB shocks. The wheel lip is not 2" above the tire. There is NO rubbing on this car. My car sits lower but my leafs are older. A majority of your rubbing is from the wrong offset/tire size if your leafs are new and stock height.
 

horse sence

15 Year Member
Nov 29, 1999
12,274
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Wile Coyote's stunt double
Aug 21, 2012
#30
  • Aug 21, 2012
  • #30
the problem is these cars were not designed for wide tires or tall tires ,so correct backspacing and tire width and modified wheel openings is about the only way to make them clear every thing. a rounded edged tire like the ones pictured above is a good start, they look like a great fit. iskwezm ,are the wheel lips roled ?
 

horse sence

15 Year Member
Nov 29, 1999
12,274
8,127
233
Wile Coyote's stunt double
Aug 21, 2012
#31
  • Aug 21, 2012
  • #31
JeffMustang65 said:
The wheel opening width must be about 2 inches, right? Won't all wheels come in contact with the edge if the body drops far enough to contact the wheel? If the offset on the wheel is enough to put it inside the wheel lip, wouldn't it look terrible tucked 2 inches inside the back quarter opening? The leafs are probably 20 years old. The previous owner had the long extension shackles because the leafs were saggy. I bought new leafs and installed the stock shackles to connect the leafs to the rear frame rails. I ordered a set of kyb monotube shocks for the rear. If that doesn't help the problem, my next thing to look at will be the leafs. If I have to replace the leafs, I wonder if stock would be fine or if I should look into something stiffer??
Click to expand...
can you post some pics, stock springs will probably be softer and allow the tire to rub even more,also depends on the arch of the spring. you realy dont want longer
shackles
 

iskwezm

10 Year Member
May 24, 2005
4,159
20
79
Rowland Heights,California
Aug 21, 2012
#32
  • Aug 21, 2012
  • #32
horse sence said:
the problem is these cars were not designed for wide tires or tall tires ,so correct backspacing and tire width and modified wheel openings is about the only way to make them clear every thing. a rounded edged tire like the ones pictured above is a good start, they look like a great fit. iskwezm ,are the wheel lips roled ?
Click to expand...
the coupe is not rolled
 
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