Tire rubbage after LCA relocation bracket installation?
Tire rubbage after LCA relocation bracket installation? After installing LCA relocation brackets on the car recently, the right rear tire is rubbing over bumps in the road.
Has anyone else experienced this? That car has an Eibach Pro Kit w/ stock panhard, torque arm and control arms. I suppose the rear-end is not centered, but, how would simply installing LCA relocation brackets exploit this?
- Dustin
Has anyone else experienced this? That car has an Eibach Pro Kit w/ stock panhard, torque arm and control arms. I suppose the rear-end is not centered, but, how would simply installing LCA relocation brackets exploit this?
- Dustin
After installing LCA relocation brackets on the car recently, the right rear tire is rubbing over bumps in the road.
Has anyone else experienced this? That car has an Eibach Pro Kit w/ stock panhard, torque arm and control arms. I suppose the rear-end is not centered, but, how would simply installing LCA relocation brackets exploit this?
- Dustin
Has anyone else experienced this? That car has an Eibach Pro Kit w/ stock panhard, torque arm and control arms. I suppose the rear-end is not centered, but, how would simply installing LCA relocation brackets exploit this?
- Dustin
[QUOTE=Dustin AZ;10357139]....Has anyone else experienced this? That car has an Eibach Pro Kit w/ stock panhard, torque arm and control arms. I suppose the rear-end is not centered, but, how would simply installing LCA relocation brackets exploit this?
As "lemons12" said, tire size will have a bearing on this, but a better question would be this... Where is the tire rubbing the car? If it's on the right side, yes, it's probably because the ProKit springs lowered the car enough to offet the rear axle. An adjustable PHB will cure that.
However just the relocation brackets shouldn't have done this, unless they weren't 100% "square" when they were welded in place, and now the rear end is a bit skewed.
As "lemons12" said, tire size will have a bearing on this, but a better question would be this... Where is the tire rubbing the car? If it's on the right side, yes, it's probably because the ProKit springs lowered the car enough to offet the rear axle. An adjustable PHB will cure that.
However just the relocation brackets shouldn't have done this, unless they weren't 100% "square" when they were welded in place, and now the rear end is a bit skewed.
For the LCA's anything not parallel to the ground will bring the axle forward in the wheel well. Same with the PHB, any suspesion travel that moves from the point where the bar is parallel then it will shift toward the passenger side.
Things like adjustable LCAs and PHB can help adjust the placement of the axle. That might be a bandaid for another problem though so make sure you don't have any other issues first. Just throwing that out there though.
Things like adjustable LCAs and PHB can help adjust the placement of the axle. That might be a bandaid for another problem though so make sure you don't have any other issues first. Just throwing that out there though.
Weird i ran the same reloc brackets and Boxed LCA's and had no problem on 315's.
Might wanna try a different setting on the bracket if you have it adjusted all the way to the bottom hole. Is your car lowered?
Might wanna try a different setting on the bracket if you have it adjusted all the way to the bottom hole. Is your car lowered?
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He should be able to run relocation brackets though, especially since he's drag racing (I think..). There's no question that adjustable LCAs will solve the problem, though it's kind of wierd that he's getting rubbing. Oh well... everyone's car is different.
Launching!
Joined: Jan 2008
Posts: 221
Likes: 0
Before you go buying anything else...
To make sure the rear end has not shifted side to side because of lowering, take a plumb (string with weight on bottom) and hold it against the fender, just above the high point on the tire as shown in my photoshop pic. Then measure the distance from a point on the tire side wall to the hanging string and compare both sides (measuring from same point on tire)
If the measurement is less on the right side then you can correct this with an adjustable panhard rod. Other wise chances are the brackets were improperly installed (if it has shifted forwards or backwards in the well)
To make sure the rear end has not shifted side to side because of lowering, take a plumb (string with weight on bottom) and hold it against the fender, just above the high point on the tire as shown in my photoshop pic. Then measure the distance from a point on the tire side wall to the hanging string and compare both sides (measuring from same point on tire)
If the measurement is less on the right side then you can correct this with an adjustable panhard rod. Other wise chances are the brackets were improperly installed (if it has shifted forwards or backwards in the well)
Hello, an adjustable panhard is a really good idea along with a new set of lca's. It sounds like your brackets are not installed correctly. Our brackets and i believe umi's also are drilled on an arc. If the brackets are installed correctly your wheel base should not change at all.
12 Second Club
Joined: Nov 2005
Posts: 1,847
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i have the same setup with the bmr bolt ins but i have lakewood lca's(not my choice they where on it when i got it)
and hypercoil springs with 275 40's and it dont rub.
i would also think your rear is off center.
and hypercoil springs with 275 40's and it dont rub.
i would also think your rear is off center.
You should start with an adjustable PHB (or a watts link if you really want to get fancy) so you can properly center the axle before you going crazy with other parts.
I carry UMI PHB's and LCA's, as well as the Fays2 Watts Link (better lateral location, axle doens't move in an arc like a PHB does). Basically I've got you covered, and we can solve this. You aren't running huge tires, I think just centering the axle will cure your ills. If you are inclined to do LCA's along with the PHB we have a few packages that combine them and get you a few bucks off.
From a handling standpoint the brackets might not be helping, but aren't causing this.
I carry UMI PHB's and LCA's, as well as the Fays2 Watts Link (better lateral location, axle doens't move in an arc like a PHB does). Basically I've got you covered, and we can solve this. You aren't running huge tires, I think just centering the axle will cure your ills. If you are inclined to do LCA's along with the PHB we have a few packages that combine them and get you a few bucks off.
From a handling standpoint the brackets might not be helping, but aren't causing this.
__________________
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Results matter. Talk is cheap. We are miles beyond the success anyone else has had with the 4th gens, and C5, C6, C7 Corvettes,
10 SCCA Solo National Championships, 2008 Driver of they Year, 2012 Driver of Eminence
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www.stranoparts.com --814-849-3450
Results matter. Talk is cheap. We are miles beyond the success anyone else has had with the 4th gens, and C5, C6, C7 Corvettes,
10 SCCA Solo National Championships, 2008 Driver of they Year, 2012 Driver of Eminence
13 SCCA Pro Solo Nationals Championships
2023 UMI King of the Mountain Champion
TECH Addict
Joined: Nov 2005
Posts: 2,379
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LCA relocation brackets shouldn't change the location of the axle. What happens is that while the bracket lowers the LCA in relation to the axle, the bolt holes are now moved forward to compensate for the increased distance.
The tire will stay centered within the wheel well. I have 3 sets of rims with different tires, 215/60/16, 245/50/16, 315/35/17 and only the 315's rub along the inner drivers side. Despite being centered with relation to the car with the adjustable panhard bar, when the car turns hard, the design of the suspension pushes the whole car over towards the driver's side causing the rub.
If that's the same spot you are rubbing on or biased to one side only, then an adjustable panhard is needed. If the tires are rubbing both inside of the wheel well, then the axle is moved forward. Examine the relation of the tires with relation to the fenders to determine if the axle has moved forward.
The tire will stay centered within the wheel well. I have 3 sets of rims with different tires, 215/60/16, 245/50/16, 315/35/17 and only the 315's rub along the inner drivers side. Despite being centered with relation to the car with the adjustable panhard bar, when the car turns hard, the design of the suspension pushes the whole car over towards the driver's side causing the rub.
If that's the same spot you are rubbing on or biased to one side only, then an adjustable panhard is needed. If the tires are rubbing both inside of the wheel well, then the axle is moved forward. Examine the relation of the tires with relation to the fenders to determine if the axle has moved forward.
SladeX is on the money, as is Dennis. The holes in the bracket are drilled in an fashion so as NOT to move your axle location fore/aft vs. stock. Sometimes cars are off, which is why you have the option of adjustable control arms.
Again, your issue is very, very simple. It's your PHB length. It's too short because of the lowering and effectively pulls the body to the side vs. the axle.
Again, your issue is very, very simple. It's your PHB length. It's too short because of the lowering and effectively pulls the body to the side vs. the axle.
__________________
www.stranoparts.com --814-849-3450
Results matter. Talk is cheap. We are miles beyond the success anyone else has had with the 4th gens, and C5, C6, C7 Corvettes,
10 SCCA Solo National Championships, 2008 Driver of they Year, 2012 Driver of Eminence
13 SCCA Pro Solo Nationals Championships
2023 UMI King of the Mountain Champion
www.stranoparts.com --814-849-3450
Results matter. Talk is cheap. We are miles beyond the success anyone else has had with the 4th gens, and C5, C6, C7 Corvettes,
10 SCCA Solo National Championships, 2008 Driver of they Year, 2012 Driver of Eminence
13 SCCA Pro Solo Nationals Championships
2023 UMI King of the Mountain Champion
Launching!
Joined: Jan 2008
Posts: 221
Likes: 0
Before you go buying anything else...
To make sure the rear end has not shifted side to side because of lowering, take a plumb (string with weight on bottom) and hold it against the fender, just above the high point on the tire as shown in my photoshop pic. Then measure the distance from a point on the tire side wall to the hanging string and compare both sides (measuring from same point on tire)
If the measurement is less on the right side then you can correct this with an adjustable panhard rod. Other wise chances are the brackets were improperly installed (if it has shifted forwards or backwards in the well)
To make sure the rear end has not shifted side to side because of lowering, take a plumb (string with weight on bottom) and hold it against the fender, just above the high point on the tire as shown in my photoshop pic. Then measure the distance from a point on the tire side wall to the hanging string and compare both sides (measuring from same point on tire)
If the measurement is less on the right side then you can correct this with an adjustable panhard rod. Other wise chances are the brackets were improperly installed (if it has shifted forwards or backwards in the well)
You should check the measurements like I said. More than likely you will need an adjustable PHR. Just go ahead and check first. Checking this will also familiarize yourself with how to get the rearend centered laterally once you do install an adjustable phr.