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10-15-2009, 03:51 PM | #26 |
VA72C10
Join Date: Mar 2008
Location: Midlothian, VA
Posts: 25,267
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Re: Rear end geometry 67-72 questions
I appreciate that info and that will assist in the final setup once I determine ride height.
My question really relates to the physical characteristic of the rear end....it is 1" longer from the yoke to the backing plate behind the axle on the driver's side (I think) than the passenger. So since the saddles for the trailing arm are the exact same distance from the yoke, when you center the yoke, it puts the wheels off center in relation to the frame. Once you center the wheels, you end up with one U-bolt under your frame, and one next to it. Just making sure that's normal. Both rears I have (72 5 bolt and 70 6 bolt) measure the same so I assume it is...just trying to determine the factory logic behind it because it wasted 2 hours of my time trying to figure out why I couldn't center both the yoke and wheels
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Looking for a 67-72 swb or blazer project in or around VA. |
10-15-2009, 04:22 PM | #27 |
Wide n'Low
Join Date: Jan 2007
Location: La Center, WA
Posts: 1,511
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Re: Rear end geometry 67-72 questions
Now you got me wondering if mine is the same way. I'll take some measurements tonight when I get home, I have two to look at, one in a truck and one out. Maybe it will help.
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Trippin Hazard.. 67 swb, Gold Member.. 68 Suburban Air Force Retired |
10-15-2009, 04:58 PM | #28 | ||
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Location: Yay Area CA
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Re: Rear end geometry 67-72 questions
Quote:
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1965 GMC shortwide big window 1969 Chevy C20 long (for now) 2005 Silverado 2500HD Crew Cab Quote:
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10-15-2009, 05:02 PM | #29 |
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Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,066
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Re: Rear end geometry 67-72 questions
Porterbuilt Streetrods (tell him I sent 'ya ).
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
10-15-2009, 05:05 PM | #30 | |
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Join Date: Apr 2001
Location: DALLAS,TX
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Re: Rear end geometry 67-72 questions
Quote:
Adjust until the two marks align. You should be able to cross check the measurements to the ends of the tubes @ the backing plates.
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. Last edited by SCOTI; 10-15-2009 at 05:08 PM. |
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10-15-2009, 05:34 PM | #31 |
VA72C10
Join Date: Mar 2008
Location: Midlothian, VA
Posts: 25,267
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Re: Rear end geometry 67-72 questions
So the axle is off center? I've just never seen anyone mention that...
I double checked that I was centered by measuring from the inside of the discs to the frame and right now at my estimated ride height I am dead centered....the yoke is about 1/2" out...I figure that isn't a huge deal with a two piece driveshaft...but just wanted to make sure it was typical.
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Looking for a 67-72 swb or blazer project in or around VA. |
10-15-2009, 05:35 PM | #32 |
Senior Member
Join Date: Dec 2003
Location: Mesa,Az
Posts: 3,981
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Re: Rear end geometry 67-72 questions
As SCOTI mentioned, I offer a fully adjustable PHB... that can be adjusted while ON THE TRUCK. None of the unbolting one side so you can lengthen or shorten the throw. We use a heavy duty rod-end on each side, one RH, and one LH.
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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! |
10-15-2009, 05:42 PM | #33 | |
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Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,066
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Re: Rear end geometry 67-72 questions
Quote:
On a 'custom' rear housing (12-bolt perf, 9", Dana, etc), for big power it might be beneficial to center the pinion/yoke.
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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10-15-2009, 05:54 PM | #34 |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,066
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Re: Rear end geometry 67-72 questions
It's the OK-bar
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
10-15-2009, 06:04 PM | #35 | |
Wide n'Low
Join Date: Jan 2007
Location: La Center, WA
Posts: 1,511
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Re: Rear end geometry 67-72 questions
Quote:
Re: Rear end conversion Ok so im really confused.. The whole rear is over to the drivers side two inchs more than the pass. side .. But the where the drive shaft conncts its it is not dead center of the axle.Its over one inch to the pass side.. Is it suppose to be centered or what? Here is the thread - http://67-72chevytrucks.com/vboard/s...=362458&page=2
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Trippin Hazard.. 67 swb, Gold Member.. 68 Suburban Air Force Retired |
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