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10-08-2019, 04:17 PM
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#1 |
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Registered User
Join Date: Aug 2015
Location: Minier, IL.
Posts: 96
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Centering rear axle
Does anyone have experience with moving the center pin on the rear springs of a first gen Blazer? I am having custom springs made and I want to center the wheel in the wheel well opening. How much does it need to be moved back? I have seen pictures but I have nothing to measure from on mine.
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10-08-2019, 09:35 PM
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#2 |
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Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,709
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Re: Centering rear axle
I redrilled the perch ontop of the axle housing and just pushed it back on both my '72 Jimmy and my kids project truck. Both trucks run 9.5" 8 lug axles from 3/4 ton Suburbans and the longer nose keeps u-joint in same spot as the 12 bolt in stock location.
Depending on lift, you may have to have a driveshaft made to fit the pushed back axle.
__________________
44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
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10-08-2019, 11:29 PM
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#3 |
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Registered User
Join Date: Aug 2015
Location: Minier, IL.
Posts: 96
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Re: Centering rear axle
Thanks Mike, I think they look better centered. I may try moving the hole in the perch if I need to.
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10-09-2019, 07:20 AM
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#4 |
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Senior Member
 
Join Date: Nov 2013
Location: East Tennessee
Posts: 2,107
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Re: Centering rear axle
__________________
1967 C10 Step side 1968 C10 Step side 1970 Chevrolet K/5 Blazer 1972 Chevrolet K/5 Blazer ............. 
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10-09-2019, 11:55 AM
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#5 |
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Registered User
Join Date: Mar 2015
Location: Ontario Canada
Posts: 1,497
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Re: Centering rear axle
I moved mine back 1/2 ". I needed 1" spacer blocks anyway so I shifted the pin on the block.
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10-09-2019, 02:27 PM
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#6 |
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Registered User
Join Date: Aug 2015
Location: Minier, IL.
Posts: 96
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Re: Centering rear axle
I saw the zero rate blocks and offset plates from ORD. I am using a shackle flip which moves the axle forward 1/2” . I am having Alcan make the springs, they can move the pin back when the spring is made. I’m thinking I should move the pin back 1-1/2” to start and then if I have to I can use the offset plates to adjust from there.
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