71 2wd 12 bolt width - The 1947 - Present Chevrolet & GMC Truck Message Board Network

djracer · 02-03-2008, 12:26 AM

I need the actual width from wheel mounting flange to wheel mounting flange. I installed one of these in my uncle's 66 GMC truck and need to go narrower to accommodate a larger tire.

pro street 70 · 02-03-2008, 12:45 AM

I Used Monti Ss Rear In My 70 Chevy.got 31x18.5x15 On 15x14 Inch Rim. No Frame Mods

djracer · 02-03-2008, 01:25 AM

I have my eye on an 8.8 with rear disc from and exploder. I just need a stock width to reference from. I think we will probably just go with a 12 inch wheel and a drag radial. It already has been converted to trailing arms and coil overs but it has a nasty small block and a muncie!

pro street 70 · 02-03-2008, 01:42 AM

Sounds Like A Sick Truck I Thought About Using A 8.8 Out Of A Mustang But The 8.5 Rear Was A Good Deal.$250 With 3.73 And Aftermarket Axels And Carrier With Only 500mi On It.it Has Lasted 9000mi With Blown 355 Making 450 Hp But I Will Have To See About With The New Motor 357ci 610hp

pro street 70 · 02-03-2008, 03:22 AM

I Also Have Stock Rear Over Buddys House I Will Get Width For You This Weekend

djracer · 02-03-2008, 01:23 PM

you need to scope out the new racing section! Thanks for trying to get a measurement !

Welcome to the board from Alabama!

Super73 · 04-20-2008, 04:07 AM

Anyone ever come up with a width from outer drum to outer drum?

**uncle** · 04-20-2008, 04:22 AM

It's 57" from inside of each backing plate,but not sure on the other measurement.

djracer · 04-20-2008, 04:42 PM

the explorer 8.8 rear is 60.25 from mounting flange to mounting flange. I bought one from a v8 mountaineer with 3.73's and a posi and 31 spline axles for 275 from the junk yard.

Super73 · 04-21-2008, 12:01 AM

DJ, is that a 5x5 patern or 5x5.5?

I have a lead on a 61" drum to drum 9" for $225. I'm not sure that I want to go disk in the rear.

I asked somone one E-bay that has a 73-87 6-lug 4x4 the width from drum to drum. this is what he gave me.. "measuring it by myself I came up with about 64 1/4 inches from one side to the other where the wheels would seat against the drums, and 42 inches between centers of the spring perches, thank you"

Are these the same width as the 70 1/2 throuh 73 5-lug?

02-03-2008, 12:26 AM	#1
djracer Registered User Join Date: Feb 2001 Location: Wetumpka, Al, U.S. Posts: 8,892	71 2wd 12 bolt width I need the actual width from wheel mounting flange to wheel mounting flange. I installed one of these in my uncle's 66 GMC truck and need to go narrower to accommodate a larger tire. __________________ Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole!

02-03-2008, 12:45 AM	#2
pro street 70 Registered User Join Date: Jan 2008 Location: oakville ct Posts: 23	Re: 71 2wd 12 bolt width I Used Monti Ss Rear In My 70 Chevy.got 31x18.5x15 On 15x14 Inch Rim. No Frame Mods __________________ 1970 chevy short step blown 355

02-03-2008, 01:25 AM	#3
djracer Registered User Join Date: Feb 2001 Location: Wetumpka, Al, U.S. Posts: 8,892	Re: 71 2wd 12 bolt width I have my eye on an 8.8 with rear disc from and exploder. I just need a stock width to reference from. I think we will probably just go with a 12 inch wheel and a drag radial. It already has been converted to trailing arms and coil overs but it has a nasty small block and a muncie! __________________ Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole!

02-03-2008, 01:42 AM	#4
pro street 70 Registered User Join Date: Jan 2008 Location: oakville ct Posts: 23	Re: 71 2wd 12 bolt width Sounds Like A Sick Truck I Thought About Using A 8.8 Out Of A Mustang But The 8.5 Rear Was A Good Deal.$250 With 3.73 And Aftermarket Axels And Carrier With Only 500mi On It.it Has Lasted 9000mi With Blown 355 Making 450 Hp But I Will Have To See About With The New Motor 357ci 610hp __________________ 1970 chevy short step blown 355

02-03-2008, 03:22 AM	#5
pro street 70 Registered User Join Date: Jan 2008 Location: oakville ct Posts: 23	Re: 71 2wd 12 bolt width I Also Have Stock Rear Over Buddys House I Will Get Width For You This Weekend __________________ 1970 chevy short step blown 355

02-03-2008, 01:23 PM	#6
djracer Registered User Join Date: Feb 2001 Location: Wetumpka, Al, U.S. Posts: 8,892	Re: 71 2wd 12 bolt width you need to scope out the new racing section! Thanks for trying to get a measurement ! Welcome to the board from Alabama! __________________ Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole!

04-20-2008, 04:07 AM	#7
Super73 Registered User Join Date: Nov 2007 Location: Bay Area, Ca Posts: 2,841	Re: 71 2wd 12 bolt width Anyone ever come up with a width from outer drum to outer drum? __________________ ------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49

04-20-2008, 04:22 AM	#8
uncle Senior Member Join Date: Aug 2003 Location: Conyers,Ga. Posts: 7,288	Re: 71 2wd 12 bolt width It's 57" from inside of each backing plate,but not sure on the other measurement.

04-20-2008, 04:42 PM	#9
djracer Registered User Join Date: Feb 2001 Location: Wetumpka, Al, U.S. Posts: 8,892	Re: 71 2wd 12 bolt width the explorer 8.8 rear is 60.25 from mounting flange to mounting flange. I bought one from a v8 mountaineer with 3.73's and a posi and 31 spline axles for 275 from the junk yard. __________________ Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole!

04-21-2008, 12:01 AM	#10
Super73 Registered User Join Date: Nov 2007 Location: Bay Area, Ca Posts: 2,841	Re: 71 2wd 12 bolt width DJ, is that a 5x5 patern or 5x5.5? I have a lead on a 61" drum to drum 9" for $225. I'm not sure that I want to go disk in the rear. I asked somone one E-bay that has a 73-87 6-lug 4x4 the width from drum to drum. this is what he gave me.. "measuring it by myself I came up with about 64 1/4 inches from one side to the other where the wheels would seat against the drums, and 42 inches between centers of the spring perches, thank you" Are these the same width as the 70 1/2 throuh 73 5-lug? __________________ ------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49 Last edited by Super73; 04-21-2008 at 12:09 AM.

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