Porterbuilt A-Arms problem. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1moretoy · 06-16-2015, 01:37 PM

Hey guys got the steering hooked up the other day and ran into a problem witht the rim rubbing on the swaybar mount when the wheel is turned. These wheels are just temporary but I dont think I have read about this before. The wheels are 19". I'm hoping when I order the new wheels this wont be a problem. Has anyone else had this happen?

t76turbo · 06-16-2015, 02:51 PM

Which configuration arms did you get?? I have 1 inch forward lower arms on order.

theastronaut · 06-16-2015, 03:52 PM

Mine are doing the same thing, 1" forward and 1" narrowed. I have 18x9.5" Z06 replicas with 1.5" spacers for mock up. I'll have to relocate the sway bar mount so I can run 18x11" like I'd planned.

**lolife99** · 06-16-2015, 03:53 PM

Wow.
What width wheel and how much backspacing?

theastronaut · 06-16-2015, 04:05 PM

Quote:

Originally Posted by lolife99

Wow.
What width wheel and how much backspacing?

Mine are 9.5" wide, +57 offset with a 1.5" spacer. So around +19 offset. That works out to 6" backspacing.

Pro Performance · 06-16-2015, 07:25 PM

With the PB control arms, you can only run so much backspacing on the wheels, due to that sway bar tab.

gringoloco · 08-25-2016, 05:14 PM

I'm running the PB/Addco bar with stock control arms and get the rub. The issue is that the bar is just so wide--great for leverage, bad for tire/wheel clearance.

Talking to Dave at PB, he recommends no more than 5.25 BS with the bar. My 20x8.5s w/ 5.25 just barely rub...

What have you guys with wide front tires done to accommodate? I'd like to bump up to a wider front wheel/tire combo. Seems like weld a new tab and use a narrower bar is a potential fix.

PBFAB.COM · 08-26-2016, 12:55 PM

Quote:

Originally Posted by gringoloco

I'm running the PB/Addco bar with stock control arms and get the rub. The issue is that the bar is just so wide--great for leverage, bad for tire/wheel clearance.

Talking to Dave at PB, he recommends no more than 5.25 BS with the bar. My 20x8.5s w/ 5.25 just barely rub...

What have you guys with wide front tires done to accommodate? I'd like to bump up to a wider front wheel/tire combo. Seems like weld a new tab and use a narrower bar is a potential fix.

This is something I have been taking into consideration for a while. The good news is now that we are building all our sway bars in house... and finally have them in production... I will be doing a re-design on the sway bar tabs and building a new sway bar that will allow a wider wheel/deeper backspace.

Nate

gringoloco · 08-26-2016, 05:11 PM

That sound is me clapping my hands. In my cube. At my desk. At work. Need a test mule?

moregrip · 08-27-2016, 11:15 PM

Quote:

Originally Posted by 1moretoy

Hey guys got the steering hooked up the other day and ran into a problem witht the rim rubbing on the swaybar mount when the wheel is turned. These wheels are just temporary but I dont think I have read about this before. The wheels are 19". I'm hoping when I order the new wheels this wont be a problem. Has anyone else had this happen?

damn, I had no idea this was a problem or that I should even inquire about it honestly(lesson learned) when I ordered my 1" fwd Lower Control Arms. I plan to run a wide front tire/wheel as well......what will my options be if I run into the same issue?

PBFAB.COM · 08-29-2016, 05:04 PM

Quote:

Originally Posted by moregrip

damn, I had no idea this was a problem or that I should even inquire about it honestly(lesson learned) when I ordered my 1" fwd Lower Control Arms. I plan to run a wide front tire/wheel as well......what will my options be if I run into the same issue?

If you run into the same issue just give us a call and we will help determine a solution.

The sway bar tab has been in the same location for 8 years... LOTS and LOTS of arms out there. This really hasn't been much of a concern. But as mentioned above... feel free to follow up with us if you have any concerns.

Nate

moregrip · 09-06-2016, 12:06 AM

Quote:

Originally Posted by PBFAB.COM

If you run into the same issue just give us a call and we will help determine a solution.

The sway bar tab has been in the same location for 8 years... LOTS and LOTS of arms out there. This really hasn't been much of a concern. But as mentioned above... feel free to follow up with us if you have any concerns.

Nate

I'm not in any real hurry so that works for me

Thank you

G8DAN · 09-09-2016, 03:35 PM

Dam. Now I am a bit concerned since I plan on running 305 tires up front with wheels measuring 6 inch backspacing. I hope I don't run into these issues as well.

06-16-2015, 01:37 PM	#1
1moretoy Registered User Join Date: Jul 2008 Location: san jose ca Posts: 467	Porterbuilt A-Arms problem. Hey guys got the steering hooked up the other day and ran into a problem witht the rim rubbing on the swaybar mount when the wheel is turned. These wheels are just temporary but I dont think I have read about this before. The wheels are 19". I'm hoping when I order the new wheels this wont be a problem. Has anyone else had this happen? Attached Images

06-16-2015, 02:51 PM	#2
t76turbo Registered User Join Date: Dec 2010 Location: N.E. Florida Posts: 215	Re: Porterbuilt A-Arms problem. Which configuration arms did you get?? I have 1 inch forward lower arms on order. __________________ 1970 Shortbed 2wd C-10

06-16-2015, 03:52 PM	#3
theastronaut Registered User Join Date: May 2011 Location: Anderson SC Posts: 3,901	Re: Porterbuilt A-Arms problem. Mine are doing the same thing, 1" forward and 1" narrowed. I have 18x9.5" Z06 replicas with 1.5" spacers for mock up. I'll have to relocate the sway bar mount so I can run 18x11" like I'd planned. __________________ Project Goldilocks '66 C10 Short Fleet BBW Build '65 C10 Highly Detailed Stock Restoration Thread '78 Camaro Targa Roof Build '55 International Metal/Body/Paint Work '66 F100 Full Rotisserie Restoration '40 Packard 120 Convertible Coupe Restoration How To Restore and Detail an Original Gauge Cluster How To Detail Sand Body Panels, Edges, Corners, Etc

06-16-2015, 03:53 PM	#4
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	Re: Porterbuilt A-Arms problem. Wow. What width wheel and how much backspacing? __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

06-16-2015, 07:25 PM	#6
Pro Performance Registered User Join Date: Aug 2010 Location: AZ Posts: 3,069	Re: Porterbuilt A-Arms problem. With the PB control arms, you can only run so much backspacing on the wheels, due to that sway bar tab.

08-25-2016, 05:14 PM	#7
gringoloco A guy with a truck Join Date: Sep 2005 Location: Germany, for now Posts: 5,921	Re: Porterbuilt A-Arms problem. I'm running the PB/Addco bar with stock control arms and get the rub. The issue is that the bar is just so wide--great for leverage, bad for tire/wheel clearance. Talking to Dave at PB, he recommends no more than 5.25 BS with the bar. My 20x8.5s w/ 5.25 just barely rub... What have you guys with wide front tires done to accommodate? I'd like to bump up to a wider front wheel/tire combo. Seems like weld a new tab and use a narrower bar is a potential fix. __________________ -Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy

08-26-2016, 05:11 PM	#9
gringoloco A guy with a truck Join Date: Sep 2005 Location: Germany, for now Posts: 5,921	Re: Porterbuilt A-Arms problem. That sound is me clapping my hands. In my cube. At my desk. At work. Need a test mule? __________________ -Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy

09-09-2016, 03:35 PM	#13
G8DAN Registered User Join Date: Dec 2012 Location: Sylmar, CA Posts: 79	Re: Porterbuilt A-Arms problem. Dam. Now I am a bit concerned since I plan on running 305 tires up front with wheels measuring 6 inch backspacing. I hope I don't run into these issues as well.



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