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02-07-2016, 11:50 PM
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#1 |
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Registered User
Join Date: Oct 2015
Location: Grafton Ohio
Posts: 94
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Best option for 5" rear drop; all spring or spring and blocks?
So I am dropping my rear 5" to accommodate my 3.5" front drop. What is the preferred method, all spring or a combination of spring and blocks?
I see some blocks have angle built into them for the pinion angle as well. I have the CPP tubular trailing arms already as well, just looking to move forward with this portion of the rolling chassis. thanks |
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02-08-2016, 12:36 AM
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#2 |
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Senior Member
 
Join Date: Jan 2007
Location: Turlock, CA
Posts: 8,805
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Re: Best option for 5" rear drop; all spring or spring and blocks?
the more spring drop, the stiffer the ride will be. so ideally you would throw some blocks in there too, even though it costs a bit more. if you have 15" wheels you will not want more than 1.5" drop blocks, or you'll have scrub line issues. that's assuming the cpp arms are the same height as stock, but i'm not sure if that's true.
__________________
Please help my sister in law with her battle with cancer https://gofund.me/902f6fce Thank you all so far you are angels!! Project "C10 Fever" (68 factory black 396 swb) Project "Little Sister" (70 c10 blue original paint refresh) Project "Blue Bomb" (70 c30 blue original paint refresh) SOLD Project "Vitamin C" (71 c10 orange original paint refresh) SOLD |
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02-08-2016, 02:06 AM
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#3 |
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Registered User
Join Date: Feb 2014
Location: Los Angeles area :(
Posts: 499
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Re: Best option for 5" rear drop; all spring or spring and blocks?
4" spring + 1" block
do you have the cpp center support for the trailing arms? If not, you might need to shim the axle. And even if you do (like myself) you still want to check.
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'68 C10 SWB '85 K30 Blazer |
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02-08-2016, 07:42 AM
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#4 | |
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Registered User
Join Date: Oct 2015
Location: Grafton Ohio
Posts: 94
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Re: Best option for 5" rear drop; all spring or spring and blocks?
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02-08-2016, 08:35 AM
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#5 |
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Special Order
  
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: Best option for 5" rear drop; all spring or spring and blocks?
I'd do all spring. I don't like the trailing arms hanging down so low and if you buy quality drop springs they are made to carry the truck and ride well at that ride level. I've never needed to shim at 6" all spring
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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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02-08-2016, 08:46 AM
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#6 | |
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Registered User
Join Date: Oct 2015
Location: Grafton Ohio
Posts: 94
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Re: Best option for 5" rear drop; all spring or spring and blocks?
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02-08-2016, 11:02 AM
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#7 | ||
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Registered User
Join Date: Feb 2014
Location: Los Angeles area :(
Posts: 499
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Re: Best option for 5" rear drop; all spring or spring and blocks?
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__________________
'68 C10 SWB '85 K30 Blazer |
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02-08-2016, 11:04 PM
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#8 | ||
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Special Order
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: Best option for 5" rear drop; all spring or spring and blocks?
Quote:
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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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