New adjustable front lower arms from SPL

[honeybadger]

GT350 Mustang Front Lower Control Arms

GT350 Mustang Lower Control Arms - Camber/Roll Center/Track Width Adjustable

www.splparts.com

New offering from SPL for the GT350. Thoughts on these? My first thought was these are for camber adjustment, but then I couldn't figure out how they wouldn't screw up geometry. A camber plate/concentric bolt just tilts the tire at a pivot point. However, this would appear to push the knuckle from the bottom - but that will physically move the entire knuckle either further or closer to the frame. Additionally, since there's a second control arm behind this one, I'd assume the knuckle has to pivot around that (pushing outwards would push the knuckle back and tightening would pull it forward).

Assuming I'm not smoking something, what would these be used for?

 

[67GTA]

GT350 Mustang Front Lower Control Arms

GT350 Mustang Lower Control Arms - Camber/Roll Center/Track Width Adjustable

www.splparts.com

View attachment 63137

New offering from SPL for the GT350. Thoughts on these? My first thought was these are for camber adjustment, but then I couldn't figure out how they wouldn't screw up geometry. A camber plate/concentric bolt just tilts the tire at a pivot point. However, this would appear to push the knuckle from the bottom - but that will physically move the entire knuckle either further or closer to the frame. Additionally, since there's a second control arm behind this one, I'd assume the knuckle has to pivot around that (pushing outwards would push the knuckle back and tightening would pull it forward).

Assuming I'm not smoking something, what would these be used for?

Track width adjustments?

 

[honeybadger]

Track width adjustments?

Can you adjust track width without completely messing up geometry, though? Wouldn't this change the relative position in the wheel well (front to back) and mess with caster, etc.

 

[67GTA]

Can you adjust track width without completely messing up geometry, though? Wouldn't this change the relative position in the wheel well (front to back) and mess with caster, etc.

Going off memory (since I don’t have an S550) - aren’t these control arms running East-West, so making them longer would widen track width, and then the tension rods would have to be adjusted to maintain the same caster? Again, more questions than answers from me - I just know that adjustable track width is pretty common on race car tuning.

 

[honeybadger]

Ahhh, so I went to find you a picture, but it looks like Terry has these on his site. In his pics, it shows a second SPL arm with adjustment capabilities. In typical fashion, Terry's site is more clear than the OEM. So, assuming you have both, you could adjust as needed.

SPL Parts TITANIUM Series Front Lower Control Arms S550 Ford Mustang

SPL Parts Front Lower Control Arms (FLCA) provide roll center, camber, and track width adjustment for the S550 Ford Mustang, and allow for full articulation with the proper ball joint angle. The main arm is slotted to allow the use of pinch bolts, and our rotating clamps on SPL Parts' exclusive...

vorshlag-store.com

 

[bob]

Caster adjustment my guess and track width?

 

[67GTA]

Ahhh, so I went to find you a picture, but it looks like Terry has these on his site. In his pics, it shows a second SPL arm with adjustment capabilities. In typical fashion, Terry's site is more clear than the OEM. So, assuming you have both, you could adjust as needed.

SPL Parts TITANIUM Series Front Lower Control Arms S550 Ford Mustang

SPL Parts Front Lower Control Arms (FLCA) provide roll center, camber, and track width adjustment for the S550 Ford Mustang, and allow for full articulation with the proper ball joint angle. The main arm is slotted to allow the use of pinch bolts, and our rotating clamps on SPL Parts' exclusive...

vorshlag-store.com

View attachment 63138

Picture is worth 1000 words!! That 2nd adjustable arm is what I was referring to as a tension rod - not sure if that’s the right term or not.

 

[Scootsmcgreggor]

If you’re not making caster adjustment in the strut hat/camber plate then the tension arm is the other way you would do that.

This adjustable LCA will change track width, camber, and steering angle inclination if you want to. Along with an adjustable length tension arm you can change some mechanics of the steering and I believe anti-dive characteristics.

 

[Tonymustang302]

GT350 Mustang Front Lower Control Arms

GT350 Mustang Lower Control Arms - Camber/Roll Center/Track Width Adjustable

www.splparts.com

View attachment 63137

New offering from SPL for the GT350. Thoughts on these? My first thought was these are for camber adjustment, but then I couldn't figure out how they wouldn't screw up geometry. A camber plate/concentric bolt just tilts the tire at a pivot point. However, this would appear to push the knuckle from the bottom - but that will physically move the entire knuckle either further or closer to the frame. Additionally, since there's a second control arm behind this one, I'd assume the knuckle has to pivot around that (pushing outwards would push the knuckle back and tightening would pull it forward).

Assuming I'm not smoking something, what would these be used for?

theyre not new, ive had them in my basement for over 6 months. You need to get the adjustable tension arm too so your caster is adjusted along with camber.

these are much better imho because instead if cutting the strut towers, it swings the lowers out more so wider stance.

URW is currently putting the full spl and full tilt catolog on my shelby. Should be done soon

edit: if you are keeping your magna ride you need to ask turner in tech support to send you the brackets for the sensors

 

[PaddyPrix]

I don't have a GT350, but I have an s550 and got both the lower control arm and the torsion rod. In the hands of an expert, allowed me to get the suspension geometry worked out, and it's a night and day difference between what it was, and what it now is. Also ended up shaving about 20 pounds from the front end.

I swapped in both, but understand the challenges had you done just one.

 

[blacksheep-1]

Picture is worth 1000 words!! That 2nd adjustable arm is what I was referring to as a tension rod - not sure if that’s the right term or not.

back in the day, we called those strut rods, every 66 mustang had them.

 

[Tonymustang302]

I don't have a GT350, but I have an s550 and got both the lower control arm and the torsion rod. In the hands of an expert, allowed me to get the suspension geometry worked out, and it's a night and day difference between what it was, and what it now is. Also ended up shaving about 20 pounds from the front end.

I swapped in both, but understand the challenges had you done just one.

I think its best to do both

 

[steveespo]

Has anyone mounted these on a GT350 and if so how did you mount the ride height sensors? Thanks

 

[Tonymustang302]

Has anyone mounted these on a GT350 and if so how did you mount the ride height sensors? Thanks

Theres holes on the spl to mount. If you are keeping magnaride ask turner in tech support and he’ll ship out the brackets

 

[ShatterPoints]

Had SPL stuff on my 911. These are worth every penny. The LCA + Tension arms give you camber, caster, toe, and track width adjustments. I am planning on getting both for my gt350 this year. In case you did not know SPL is local to us in the Austin area.

 

[steveespo]

Theres holes on the spl to mount. If you are keeping magnaride ask turner in tech support and he’ll ship out the brackets

View attachment 64360

Tony do you have picture from other side?
Steve

 

[Tonymustang302]

The cars back at urw getting some quick updates. I’ll see if they can take them when i drop off cortex’s magnaride deletes

 

[Slowcoyote510]

Hi everyone. First post on here. My current issue is the bolt that goes into the knuckle is too big. The bolt i got in this kit is different from the pictures they have on their website. I did double check to make sure i got the correct kit. The installation instructions diagram also show the bolt I got with the kit. Did you have to drill out the hole a little bit? If anybody could chime in that would be great. I have a alignment appointment later on today. I might have to cancel if i cant get this installed today.

 

[Scootsmcgreggor]

GT and gt350 knuckles have different size ball joint taper bores. SPL may have put the wrong taper bolts in your kit.

 

[mwjscn]

SPL may have put the wrong taper bolts in your kit.

If I was to read into the username Slowcoyote510 not being Slowvoodoo510 and the instructions page pictured having the GT350 part number "SPL FLCA GT350" versus "SPL FLCA S550"... it may not be SPL's fault if my intuition is correct.