porterbuilt stage 2 rear questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chapster · 04-23-2011, 08:44 PM

For all you guy's running stage 2 rear I have some questions. When my trailing arms are set to 42.5" in length my u-bolts will hit the front of the c-notch before the axle housing will bottom out in the notch. (no bump stops).

2nd, if it was to bottom out without hitting the u-bolt in the front then the panard bar bracket would hit in the rear of the c-notch.

Has anyone else run into this problem?

67c10rustbuket · 04-24-2011, 01:40 AM

I do not have a porterbuilt setup but i know some people will grind off the rivets and move the truck arm crossmember to properly center the axle within the notch. im sure there are others have delt with this exact problem though with better advice....

**lolife99** · 04-24-2011, 06:29 AM

Look at the pics on Porterbuilts website.
Www.porterbuiltfabrication.com or www.porterbuiltstreetrods.com.
Posted via Mobile Device

**Tmend** · 04-24-2011, 12:52 PM

To solve the trailing arm problem u can install some 2 inch lowering blocks. The pan hard bar problem I did not have an issue when I intalled mine
Posted via Mobile Device

chapster · 04-24-2011, 01:59 PM

I have looked at porterbuilt streetrods website and I have also researched plenty prior to posting. I have also contacted Nate and when he get's a chance I am sure he will chime in.

As for the issue, Nates pictures for install does not appear to have the panard bar adjusted evenly if you look at the rear end u bolt bucket on both sides.

The trailing arms I am using are 3" drop. Now I could very easily lengthen the trailing arms to miss the front u-bolt hitting. But as I stated before then the panard bar bracket will hit in the back of the c-notch. If it was not powder coated I could remove some material to clear. (how will that effect the wheel centred in wheelwell?)

I was reading that scoti's truck was running with no bumpstops but his build thread pics don't show much due to picture angle.

The only other variable that I can think of is I have the 1 pc c-notch vs the 2 pc notch. Is the new two pc notch have a larger opening (front to back)?

gringoloco · 04-24-2011, 03:45 PM

Will you be using a bumpstop upon final assembly? There are 'pancake' poly stops 3/8" tall, so you wouldn't lose much drop, and will save that pretty powder-coat. Just a thought, as if this is the case, you may not have the same problem in reality as you are experiencing in mock-up...

chapster · 04-24-2011, 06:11 PM

Thanks gringoloco,

We are on the same thought process. I talked to Nate last week and he is sending me some bump stops with my other parts to try. I thought I would ask the question as I know some guy's claim to be running without them and was curious how?

At the end of the day if the bump stops keep it from hitting that is what I will do. I am the type of person who always asked why when there is a discretion. lol

65Short · 04-26-2011, 12:11 PM

Sorry for the off topic, but are the frame stiffeners new? I haven't seen them here or on nate's site. Thanks, Jon.
Posted via Mobile Device

SCOTI · 04-26-2011, 12:31 PM

Quote:

Originally Posted by 65Short

Sorry for the off topic, but are the frame stiffeners new? I haven't seen them here or on nate's site. Thanks, Jon.
Posted via Mobile Device

They're a kit that you do final welding on because of the variance between truck frames. Contact Porterbuilt for info on them.

PBFAB.COM · 04-26-2011, 12:59 PM

Kevin-

Lets see where she lands once the bumpstops arrive and are installed. I think we will have all concerns eliminated. They are coming via USPS with the inserts as requested.

chapster · 04-26-2011, 10:43 PM

Thanks Nate,

I was just curious how some people without bump stops were able to bottom out in the notch without hitting on the U-bolt. There should be no differences if trailing arm and notch dimensions are the same?

Also wanted to confirm I hadn't missed something on install...

PBFAB.COM · 04-26-2011, 11:18 PM

Quote:

Originally Posted by chapster

Thanks Nate,

I was just curious how some people without bump stops were able to bottom out in the notch without hitting on the U-bolt. There should be no differences if trailing arm and notch dimensions are the same?

Also wanted to confirm I hadn't missed something on install...

The notch you have is a little different than the two-piece notch.

chapster · 04-27-2011, 11:49 AM

now that makes sense to me,

Thanks Nate

04-23-2011, 08:44 PM	#1
chapster Registered User Join Date: Jul 2005 Location: .. Posts: 455	porterbuilt stage 2 rear questions For all you guy's running stage 2 rear I have some questions. When my trailing arms are set to 42.5" in length my u-bolts will hit the front of the c-notch before the axle housing will bottom out in the notch. (no bump stops). 2nd, if it was to bottom out without hitting the u-bolt in the front then the panard bar bracket would hit in the rear of the c-notch. Has anyone else run into this problem? __________________ 1967 GMC shorty Parts Pile: NoLimit, Accu Air, Kore 3, Matts Classic Bowtie, March Performance, Lokar, ScottsHot Rods, Vintage Air, American Auto Wire, Circle D, Accu Air, Borla, Budnik, Ididit, One Piece Windows, Doug Thorley, Pypes, AutoLoc, Porterbuilt, CPP, Dynamat, Dakota Digital, Fesler 1968 Chevy c10 shorty Stepper (Patina LS project) 1967 gmc custom Long Box (Farm Truck Project)

04-24-2011, 01:40 AM	#2
67c10rustbuket Registered User Join Date: Apr 2011 Location: Mustang, Oklahoma Posts: 2,806	Re: porterbuilt stage 2 rear questions I do not have a porterbuilt setup but i know some people will grind off the rivets and move the truck arm crossmember to properly center the axle within the notch. im sure there are others have delt with this exact problem though with better advice.... __________________ Dan <---(my name) 67 SWB C10 project "GEORGIA"-59 Brookwood 2dr wag...Next project-03 Tahoe 4x4 5.3 family ride-07 Hondur Accord, commuter car

04-24-2011, 06:29 AM	#3
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,690	Re: porterbuilt stage 2 rear questions Look at the pics on Porterbuilts website. Www.porterbuiltfabrication.com or www.porterbuiltstreetrods.com. Posted via Mobile Device __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

04-24-2011, 12:52 PM	#4
Tmend Senior Member Join Date: Nov 2010 Location: Reseda CA Posts: 1,262	Re: porterbuilt stage 2 rear questions To solve the trailing arm problem u can install some 2 inch lowering blocks. The pan hard bar problem I did not have an issue when I intalled mine Posted via Mobile Device

04-24-2011, 01:59 PM	#5
chapster Registered User Join Date: Jul 2005 Location: .. Posts: 455	Re: porterbuilt stage 2 rear questions I have looked at porterbuilt streetrods website and I have also researched plenty prior to posting. I have also contacted Nate and when he get's a chance I am sure he will chime in. As for the issue, Nates pictures for install does not appear to have the panard bar adjusted evenly if you look at the rear end u bolt bucket on both sides. The trailing arms I am using are 3" drop. Now I could very easily lengthen the trailing arms to miss the front u-bolt hitting. But as I stated before then the panard bar bracket will hit in the back of the c-notch. If it was not powder coated I could remove some material to clear. (how will that effect the wheel centred in wheelwell?) I was reading that scoti's truck was running with no bumpstops but his build thread pics don't show much due to picture angle. The only other variable that I can think of is I have the 1 pc c-notch vs the 2 pc notch. Is the new two pc notch have a larger opening (front to back)? Attached Images __________________ 1967 GMC shorty Parts Pile: NoLimit, Accu Air, Kore 3, Matts Classic Bowtie, March Performance, Lokar, ScottsHot Rods, Vintage Air, American Auto Wire, Circle D, Accu Air, Borla, Budnik, Ididit, One Piece Windows, Doug Thorley, Pypes, AutoLoc, Porterbuilt, CPP, Dynamat, Dakota Digital, Fesler 1968 Chevy c10 shorty Stepper (Patina LS project) 1967 gmc custom Long Box (Farm Truck Project) Last edited by chapster; 04-24-2011 at 02:01 PM.

04-24-2011, 03:45 PM	#6
gringoloco A guy with a truck Join Date: Sep 2005 Location: Germany, for now Posts: 5,920	Re: porterbuilt stage 2 rear questions Will you be using a bumpstop upon final assembly? There are 'pancake' poly stops 3/8" tall, so you wouldn't lose much drop, and will save that pretty powder-coat. Just a thought, as if this is the case, you may not have the same problem in reality as you are experiencing in mock-up... __________________ -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

04-24-2011, 06:11 PM	#7
chapster Registered User Join Date: Jul 2005 Location: .. Posts: 455	Re: porterbuilt stage 2 rear questions Thanks gringoloco, We are on the same thought process. I talked to Nate last week and he is sending me some bump stops with my other parts to try. I thought I would ask the question as I know some guy's claim to be running without them and was curious how? At the end of the day if the bump stops keep it from hitting that is what I will do. I am the type of person who always asked why when there is a discretion. lol __________________ 1967 GMC shorty Parts Pile: NoLimit, Accu Air, Kore 3, Matts Classic Bowtie, March Performance, Lokar, ScottsHot Rods, Vintage Air, American Auto Wire, Circle D, Accu Air, Borla, Budnik, Ididit, One Piece Windows, Doug Thorley, Pypes, AutoLoc, Porterbuilt, CPP, Dynamat, Dakota Digital, Fesler 1968 Chevy c10 shorty Stepper (Patina LS project) 1967 gmc custom Long Box (Farm Truck Project)

04-26-2011, 12:11 PM	#8
65Short Registered User Join Date: Jul 2008 Location: Springfield, MO Posts: 35	Re: porterbuilt stage 2 rear questions Sorry for the off topic, but are the frame stiffeners new? I haven't seen them here or on nate's site. Thanks, Jon. Posted via Mobile Device

04-26-2011, 12:59 PM	#10
PBFAB.COM Senior Member Join Date: Dec 2003 Location: Mesa,Az Posts: 3,981	Re: porterbuilt stage 2 rear questions Kevin- Lets see where she lands once the bumpstops arrive and are installed. I think we will have all concerns eliminated. They are coming via USPS with the inserts as requested. __________________ www.PorterbuiltFabrication.com Phone: 480-297-2621 E-mail: sales@pbfab.com Find us on FaceBook under Porterbuilt Fabrication Specializing in Chassis and Suspension Components for your Classic Chevrolet Truck. We offer components from the following manufacturers: Porterbuilt Accuair Ridetech (Air Ride Technologies) Air Lift Wilwood Intro Unisteer ECE Gotta Show Air Lift Borgeson CPP Supporting this forum since 2003!

04-26-2011, 10:43 PM	#11
chapster Registered User Join Date: Jul 2005 Location: .. Posts: 455	Re: porterbuilt stage 2 rear questions Thanks Nate, I was just curious how some people without bump stops were able to bottom out in the notch without hitting on the U-bolt. There should be no differences if trailing arm and notch dimensions are the same? Also wanted to confirm I hadn't missed something on install... __________________ 1967 GMC shorty Parts Pile: NoLimit, Accu Air, Kore 3, Matts Classic Bowtie, March Performance, Lokar, ScottsHot Rods, Vintage Air, American Auto Wire, Circle D, Accu Air, Borla, Budnik, Ididit, One Piece Windows, Doug Thorley, Pypes, AutoLoc, Porterbuilt, CPP, Dynamat, Dakota Digital, Fesler 1968 Chevy c10 shorty Stepper (Patina LS project) 1967 gmc custom Long Box (Farm Truck Project)

04-27-2011, 11:49 AM	#13
chapster Registered User Join Date: Jul 2005 Location: .. Posts: 455	Re: porterbuilt stage 2 rear questions now that makes sense to me, Thanks Nate __________________ 1967 GMC shorty Parts Pile: NoLimit, Accu Air, Kore 3, Matts Classic Bowtie, March Performance, Lokar, ScottsHot Rods, Vintage Air, American Auto Wire, Circle D, Accu Air, Borla, Budnik, Ididit, One Piece Windows, Doug Thorley, Pypes, AutoLoc, Porterbuilt, CPP, Dynamat, Dakota Digital, Fesler 1968 Chevy c10 shorty Stepper (Patina LS project) 1967 gmc custom Long Box (Farm Truck Project)



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