Front wheel fitment

[khsonic03]

I don't know if this will help you or not, but I'm running 20x10's on the front with a 35 offset. My front tires are 285/35's and I'm lowered on an Eibach pro-kit which is I think about an inch drop in the front. Performance Package car. They are VERY close to the front fender well when I turn, but I have no rub marks anywhere. No spacers.

This is exactly what I run and had the same results. Fits, no rubbing. I will add that I installed steeda roll center correction arms (lateral links) and lost approx 5mm of track width like others have. After that, I installed 5mm spacers and everything is all good again. So ended up with a 30 offset after all said and done. I could probably squeak out another 2mm or so and not rub.

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[BlownGP]

This is exactly what I run and had the same results. Fits, no rubbing. I will add that I installed steeda roll center correction arms (lateral links) and lost approx 5mm of track width like others have. After that, I installed 5mm spacers and everything is all good again. So ended up with a 30 offset after all said and done. I could probably squeak out another 2mm or so and not rub.

So you are saying the correction arms pushed the wheels in another 5mm?

I was thinking about getting those when I lower it, but I don't want the wheels pushed in any farther.

 

[khsonic03]

So you are saying the correction arms pushed the wheels in another 5mm?

I was thinking about getting those when I lower it, but I don't want the wheels pushed in any farther.

View attachment 375064 View attachment 375063

Correct. @BmacIL had a similar experience. I emailed steeda and they confirmed. Oddly enough though, it took 2 emails before they confirmed it. In the first email they said they wouldn't affect track width.

 

[BlownGP]

Correct. @BmacIL had a similar experience. I emailed steeda and they confirmed. Oddly enough though, it took 2 emails before they confirmed it. In the first email they said they wouldn't affect track width.

Ok, interesting. That's very good know.

Thanks

 

[BmacIL]

Correct. @BmacIL had a similar experience. I emailed steeda and they confirmed. Oddly enough though, it took 2 emails before they confirmed it. In the first email they said they wouldn't affect track width.

It's basic trigonometry. They confirmed that they use the OEM forging (though without the OEM brand stamps and without L or R marking).

 

[WhiteyDog]

o glad you said that im going to be running a 20x10 front with a 30 offset with 275/35 though im at -1.8 front camber i should be solid

You got it.

This is exactly what I run and had the same results. Fits, no rubbing. I will add that I installed steeda roll center correction arms (lateral links) and lost approx 5mm of track width like others have. After that, I installed 5mm spacers and everything is all good again. So ended up with a 30 offset after all said and done. I could probably squeak out another 2mm or so and not rub.

I have all the Steeda front end components and just thought it was my imagination. I thought something looked different than before from the outside of the tire to the fender lip. I guess I wasn't imagining things after all. But even with 285's on the front and no spacers I still don't have any rubbing issues. Guess I got lucky.

 

[Grintch]

oooooooooo

That's going to be close on the front but it should clear the front struts

+47 up front is a bit much. That will tuck the front more than stock. The normal range for a square setup with wide wheels and tires is +35 to 40.

I have a set of +40 10" wheels that rub the strut with wider than average 285's without a small spacer. So +40 is the max I would buy, maybe the Apex +42's if I was planning to run spacers.

 

[BlownGP]

+47 up front is a bit much. That will tuck the front more than stock. The normal range for a square setup with wide wheels and tires is +35 to 40.

I have a set of +40 10" wheels that rub the strut with wider than average 285's without a small spacer. So +40 is the max I would buy, maybe the Apex +42's if I was planning to run spacers.

But with a 9.5" wide wheel he might be ok.

I agree though. I wouldnt want to run anything more than a +40 on the front unless the wheels were narrow.

 

[Grintch]

He says we wants to run 275/40R19 tires. So pretty wide, even if slightly narrower on a 9.5" wheel than a 10" wheel.

With +47 wheels, even with a 5mm spacer that is around the max with the stock studs, he is right at the limit. I personally try to allow for some variation in the size of a given 275 tire, and allow for the possibility of fitting a wider tires (285 is the max for a 9.5 wheel, might be nice to have that option in the future).

 

[GTP]

Here is my situation. Two square sets of 19x9.5" wheels, both running 275/40 tires.

DD
19x9.5" 35mm O/S Enkei TY-5 with 275/40 BFG Comp2 All-season.
I use 5mm spacers up front, though they aren't required. Stance is perfect.

Track Day
19x9.5" 52mm O/S O.Z. Leggera with 275/40 MPS4S summer tires, with their curb-protecting wide shoulders.
I have not yet test fitted these wheels onto my 2019 GT PP1 car.

If I need 1/2" spacers up front, reducing the offset to effectively 40mm, then I'm concerned that I also need 1/2" longer studs. And if I do THAT, then it seems that my 35mm O/S Enkei's won't fit without open lug nuts, which won't look as nice.

It's too bad that the O.Z. wheels did not come in 35-40mm O/S, but then they produced them to exactly match the Ford PP1 wheel specs.

What should be my plan for clearance, stance, and ease of swap-outs?

 

[HoosierDaddy]

I really like the factory 2016 silver PP wheels but would like to run square. I understand the 9.5 rears won't clear the strut in the front which makes me think with the right spacer, it won't poke any more than any 9.5 will. Would it be flush or even more inset? Would it stick out more than in the rear making that look strange? I don't care if I would need longer studs in the front, but since they barely hit the struts, maybe he factory studs are okay with a minimum spacer.

 

[GTP]

If you search enough, you will find that many different brands of 9.5" rims sit flush when the offset is 35mm. That is my experience too with Enkei TY-5 19x9.5".

I just finished fitting my OZ 19x9.5 52mm offset wheels in the front. I installed ARP 100-7732 studs (1/2" longer) and CJPP 1/2" spacers. 8mm tire/strut clearance. Looks good. I use splined open lug nuts now, and ALL the threads engage.

I am about to do the rears next with 1" longer studs and 1/2" spacers.

It's too bad that Ford chose such high wheel offsets. 40mm would have been much better than 52.

EDIT: I went with 1/2" longer studs and 1/2" spacer in the rear.

 

[SlowStangGT]

It's basic trigonometry. They confirmed that they use the OEM forging (though without the OEM brand stamps and without L or R marking).

Correct. @BmacIL had a similar experience. I emailed steeda and they confirmed. Oddly enough though, it took 2 emails before they confirmed it. In the first email they said they wouldn't affect track width.

Hi @BmacIL and @khsonic03

Could you describe in more detail what was said in regards to the RCC Lateral Links causing track width decrease?
In my mind, I'm imagining this being the result of less static negative camber, which should not cause strut rubbing as the angle between the wheel and the strut will not change, but I am not sure if this is actually the case.

I am about to install my suspension components and I have SVE S350 19x10 ET40 wheels with 285/35r19 Michelin Pilot 4S Tires.
This will already be super close to the strut, and I am wondering if I will have any clearance issues with rubbing either the fender liner or the strut. Will I need a 3mm or 5mm spacer?

I am planning on running BMR SP083 Springs and FRPP Track Struts with MM Caster Camber Plates.

I'm also trying to figure out changes in scrub radius, but I don't know how exactly the RCC changes the geometry, track width, and change in kingpin inclination axis.

Thanks!

 

[BmacIL]

Hi @BmacIL and @khsonic03

Could you describe in more detail what was said in regards to the RCC Lateral Links causing track width decrease?
In my mind, I'm imagining this being the result of less static negative camber, which should not cause strut rubbing as the angle between the wheel and the strut will not change, but I am not sure if this is actually the case.

I am about to install my suspension components and I have SVE S350 19x10 ET40 wheels with 285/35r19 Michelin Pilot 4S Tires.
This will already be super close to the strut, and I am wondering if I will have any clearance issues with rubbing either the fender liner or the strut. Will I need a 3mm or 5mm spacer?

I am planning on running BMR SP083 Springs and FRPP Track Struts with MM Caster Camber Plates.

I'm also trying to figure out changes in scrub radius, but I don't know how exactly the RCC changes the geometry, track width, and change in kingpin inclination axis.

Thanks!

The ball joint is taller, but the arm that it resides in is the same length. This means that at ride height, the point where the arm connects to the knuckle is closer to the center line of the car than with the stock ball joint (reduced track width). That track width reduction limits the amount of negative camber possible.

 

[SlowStangGT]

The ball joint is taller, but the arm that it resides in is the same length. This means that at ride height, the point where the arm connects to the knuckle is closer to the center line of the car than with the stock ball joint (reduced track width). That track width reduction limits the amount of negative camber possible.

Ahh, makes sense. So it also sounds like it will make the kingpin inclination axis more vertical but also pull in the track so the scrub radius change should be nonexistent or negligible. Looks like there shouldn't be any fitment problems rubbing on the strut either.

I'm imagining a spacer would bring the edge of the wheel closer to the fender liner turning lock to lock, so it seems that I shouldn't have any issues

I'm hoping I wont hit the upper fender if I hit the bumpstops tho, I'm wondering if it may be a good idea to trim the bumpstops a little less than what BMR recommends, so that the bumpstop is taller than what is stated in the install instructions...

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