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Tires rubbing upper control arm
#1
So, my tires are rubbing on the upper control arms just before full steering lock, Turning left and right. Both side rub at the same time.

I have 245/60/15 tires on 15x8 wheels with 4.5" back spacing.

[Image: IMG_0714_zpsc9ab0f26.jpg]

[Image: IMG_0715_zpsde174f11.jpg]

Options to make the tires clear are:

1/4" wheel spacers. I'd need to swap in longer studs for this.

Switch tires to 15x7 wheels. They have a 4" back space.

While more expensive, I think putting the 245 tires on 15x7 wheels is the better option.. And, then I have an extra set of 15x8 wheels to put slicks on... Big Grin

Opinions?

1973 Mach 1 Q code 351 4V, 9A paint, standard interior, 3.50 rear, C6 trans.
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#2
4.5 is too much back spacing for the front wheels. It's as simple as that.
The idea of putting the same tires on a rim with 4 inch back spacing is a good one.

[Image: 1z21rv4.png]

Mike

"If I were you...... I´d rather be me."  Tongue

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#3
Suggestion. How about installing a new pair of stamped steel OEM style upper arms? They were designed to be thinner at the ball joint end to clear the inside of the wheels. They would also be cheaper than buying new wheels..
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#4
piper62j;187771 Wrote:Suggestion. How about installing a new pair of stamped steel OEM style upper arms? They were designed to be thinner at the ball joint end to clear the inside of the wheels. They would also be cheaper than buying new wheels..

Good catch piper62.
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#5
piper62j;187771 Wrote:Suggestion. How about installing a new pair of stamped steel OEM style upper arms? They were designed to be thinner at the ball joint end to clear the inside of the wheels. They would also be cheaper than buying new wheels..

That would kinda defeat the purpose of installing the better handling aftermarket suspension.

For future info, this wheel and tire combo did clear my stock suspension. I debated using 15x8 or 15x7 wheels when I originally purchased my tires, and kinda wanted more front sidewall tuck anyway.. So, off to Summit racing I go. Big Grin

1973 Mach 1 Q code 351 4V, 9A paint, standard interior, 3.50 rear, C6 trans.
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#6
Switch wheels. Even if you re-mitered the tubes on the top to clear the 14" tires when the weight of the car is on the suspension, they'd still rub when the suspension travel is fully extended.

Come to think of it, the 1/2" gain with 15" wheels may not give it to you either

Why not take the stock arms and weld stiffeners to them? These aftermarket arms look like they were made for 16" and up.

-Kurt

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#7
Those are 15's.... I ordered 15x7's this morning. These are the Global West negative roll suspension setup. It's changes geometry to improve handling. They handle better than stock parts, but are cheaper than a coil over setup. Also, couldn't find longer than stock studs that have the early ford disk brake .622 knurl size, so that eliminates the spacer option.

So, 15x7s and extra 15x8's for slicks it is. Big Grin

1973 Mach 1 Q code 351 4V, 9A paint, standard interior, 3.50 rear, C6 trans.
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#8
Totalled,

Nice setup there. It looks like if you even went to an 18 in rim, it is still looks like it is going to rub. You might have to go to wheel spacers to move the wheels outward from the control arm.

Here are a few suggestions. I am using the 25 mm spacers, with the 3 inch ARP studs to install the Mustang Steve Cobra Disc brakes setup along with the 17 inch Bullet wheels. I have not been able to find 25 mm with just the pass through stud holes. So, this weekend, I pressed out the studs that were installed in the Eibach 25 mm spacers and used the stud holes. Slipped right over the studs and drum brake hub.

Eibach

http://eibach.com/america/en/performance...el-spacers

These ARP studs pressed right into the drum brake hubs.

http://arp-bolts.com/kits/ARPkit-detail.php?RecordID=63

I hope you find a solution.

mustang7173
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#9
I would debate the perceived difference in handling between a stock upper control arm and this aftermarket one while running 15" wheels and all weather street tires.

I would install stock upper control arms if it were my car, but to each their own. So many times have I returned a car back to the stock configuration and removed flashy go-faster parts, and had he car handle and perform better for it.

Mike
__________________________________
Black 1985 GT
Yellow 1973 Mustang Mach 1
Black 2012 5.0 GT, 6-speed, Brembo brakes, 3.73's
Wimbledon White 1966 F-100 Shortbed Styleside, 390ci, Tremec 3550, FiTech EFI
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#10
I've done the exact same thing all thru the years including GM vehicles.



MeZapU;187981 Wrote:I would debate the perceived difference in handling between a stock upper control arm and this aftermarket one while running 15" wheels and all weather street tires.

I would install stock upper control arms if it were my car, but to each their own. So many times have I returned a car back to the stock configuration and removed flashy go-faster parts, and had he car handle and perform better for it.
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