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09-05-2009, 11:51 PM
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#1 |
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SWB 4X4 CLUB
Join Date: Feb 2005
Location: PA
Posts: 1,088
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Lift block question
I have a 68 chevy 4X4 and the rear leaf springs measure 3 inches wide, it is safe to use a 4 inch lift block that is 2.5 inches wide?
Jason |
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09-06-2009, 12:43 AM
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#2 |
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Registered User
Join Date: Jun 2006
Location: Idaho
Posts: 8,800
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Re: Lift block question
Drove mine for 13 years with 4" Rancho lift kit on the back with no problems. Kept it and plan on driving it for 20+ more!
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1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread 1964 Chevelle Malibu w/ 355-350TH (daily driver) Helpful AD and TF Manual Site Old Car Manual Project Last edited by OrrieG; 09-06-2009 at 12:43 AM. |
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09-06-2009, 08:02 AM
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#3 |
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Special Order
  
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: Lift block question
I guess it could be alright.But,blocks are cheap,if you can find 3" wide.Is that the problem?How about finding some thick wall pipe to sleeve the u-bolt along the block and between the springs and bottom plate.Do you follow me?
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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09-06-2009, 08:58 AM
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#4 |
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Registered User
 
Join Date: Feb 2001
Location: East Central, MO
Posts: 11,336
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Re: Lift block question
Make sure you tighten the ubolts several times after the install. Centered that is only a 1/4 difference on each side. I ran 4" rear blocks in the rear for about 20+ yrs and never had a problem. With the blocks and stock springs the truck rode better, than with the high dollar BDS rear springs.
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09-06-2009, 11:47 AM
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#5 |
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SWB 4X4 CLUB
Join Date: Feb 2005
Location: PA
Posts: 1,088
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Re: Lift block question
I already have the 2.5 inch wide blocks but the 3 inch wide are readily available. Its going to bea street machine and not see offroad.
Jason |
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09-11-2009, 01:03 PM
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#6 |
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Registered User
Join Date: Oct 2007
Location: oklahoma
Posts: 457
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Re: Lift block question
you will be fine........
like stated above check and tighten U bolts after a little bit of trip on them. check or then replace the "guide stud or bolt" make sure the "guide bolt" goes threw the springs and then tighten with a nut, which will then fit into the block to help keep it all in place.
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Lug Nuts Classic Rides. (Bodywork, small fab, and Restorations) Perry, Ok. We're just two guys, trying our best. 72 cheyenne super https://67-72chevytrucks.com/vboard/...d.php?t=811512 55 chevy truck http://67-72chevytrucks.com/vboard/s...d.php?t=840174 |
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09-11-2009, 08:31 PM
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#7 |
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Registered User
Join Date: Oct 2008
Location: Perry OK
Posts: 121
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Re: Lift block question
I would say that your springs are 2.5 wide where they bolt to the axle. On my 68 k20 they where 2.5 in the center of the spring and 3 inches at both ends. I had them re arched at a spring shop and they told me that they where like that because the springs got wider at the ends as they rolled it out from the center going each direction.
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