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05-26-2009, 11:19 AM
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#1 |
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Registered User
Join Date: Jul 2007
Location: Ontario Canada
Posts: 1,006
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Lowering shackles
Found a set on ebay i was going to bid on but decided to look at the truck first and I,m wonder how on earth do you get longer shackles when there isnt even enough room to stick your fingers inbetween the box and shackle
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05-26-2009, 11:21 AM
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#2 |
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6.0 powered square
Join Date: Feb 2008
Location: Mesquite texas
Posts: 3,459
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Re: Lowering shackles
you will have to notch out the cross member
__________________
Aaron 1980 c-10 short bed lowered, cammed 6.0, 4l80e 3600 stall, smp tune, wilwoods, and flames best time so far best et 7.86 @87 on motor 7.57 90 on a 75 shot Build http://67-72chevytrucks.com/vboard/s...d.php?t=283326 |
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05-26-2009, 11:25 AM
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#3 | |
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Registered User
 
Join Date: Apr 2005
Location: Medford, MA
Posts: 307
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Re: Lowering shackles
Quote:
 What he said.I've heard that it depends on the length of the springs. IIRC, the longer ones clear the cross member. The longer ones might be for the HD option? |
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05-27-2009, 11:53 AM
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#4 |
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TruckincrazY
Join Date: May 2004
Location: Haslet, TX
Posts: 493
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Re: Lowering shackles
Do you still have to notch the crossmember if you use hangers?
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05-27-2009, 02:47 PM
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#5 |
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6.0 powered square
Join Date: Feb 2008
Location: Mesquite texas
Posts: 3,459
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Re: Lowering shackles
the lower hangers replace the hangers closest to the gas tank
__________________
Aaron 1980 c-10 short bed lowered, cammed 6.0, 4l80e 3600 stall, smp tune, wilwoods, and flames best time so far best et 7.86 @87 on motor 7.57 90 on a 75 shot Build http://67-72chevytrucks.com/vboard/s...d.php?t=283326 |
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05-27-2009, 04:09 PM
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#7 |
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Parts and more parts
Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
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Re: Lowering shackles
I usually take out all but the last 3/4" at the bottom of the cross piece (up against the bed floor). The notch would need to be as long as the spring assembly and the bolt is, so that there is clearance on both ends of the notch. After cutting a notch into the corsspiece and leaving the last 3/4 inch of metal, I use a piece channel iron or a square tubing cut in half to bolster up the cross pice, so that I do not loose that strength in it. I then drill three bolt holes through the cross piece and the tubing and bolt it together making the notch stronger.
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05-27-2009, 05:12 PM
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#8 |
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I have car A.D.D.
Join Date: Feb 2009
Location: Greeley, Northern Colorado
Posts: 4,147
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Re: Lowering shackles
I must have the long springs because I didn't have to notch mine. I planned on it but didn't need to. I will hit my diff on the bed floor before the shackle hits the crossmember.
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-Gerald Building vehicles in memory of the first "car guy" I ever knew, my Grandpa. Bob Dunham 1935-2009. Rest in peace. 61 GMC Suburban SOLD The 86 build thread SOLD Are you a Colorado member?Click here. |
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