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y5mgisi · 03-05-2015, 04:22 AM

I have yet to find the stock leaf spring rates. But here is a table that lists several leaf spring rates.

http://coloradok5.com/springratetable.shtml

My plan for my 78 k25 is the 2" tuff country ez ride front springs, and hafl ton pickup springs from 98-2000 chevy/gmc pickup. They are 63" long and if you have ever ridden in a truck like that, you know they ride amazing for a fullsize pickup. And the fact is, its a factory leaf spring designed to be used in a pickup. They are obviously lighter duty since they were OE in a half ton, but hafl ton srping capacity is good for most folks. Heck my 2012 GMC 1500 has only 3 leafs but is rated to tow like 9500lbs. It rides amazing as well.

So, ez ride springs, good shocks, and longer rear springs and i think i'll have the best possible combo of smooth ride but still good stability.

Also, not sure about the 67-72 stuff, but TnA offroad offers a zero lift shackle flip for the 73-87(91) crowd.

http://www.totallynakedauto.com/GM_A...ift_shflip.htm

03-05-2015, 04:22 AM	#27
y5mgisi Second Chance Program Join Date: Jun 2006 Location: Portland, OR Posts: 2,642	Re: Best ride quality, Stock or Lifted? I have yet to find the stock leaf spring rates. But here is a table that lists several leaf spring rates. http://coloradok5.com/springratetable.shtml My plan for my 78 k25 is the 2" tuff country ez ride front springs, and hafl ton pickup springs from 98-2000 chevy/gmc pickup. They are 63" long and if you have ever ridden in a truck like that, you know they ride amazing for a fullsize pickup. And the fact is, its a factory leaf spring designed to be used in a pickup. They are obviously lighter duty since they were OE in a half ton, but hafl ton srping capacity is good for most folks. Heck my 2012 GMC 1500 has only 3 leafs but is rated to tow like 9500lbs. It rides amazing as well. So, ez ride springs, good shocks, and longer rear springs and i think i'll have the best possible combo of smooth ride but still good stability. Also, not sure about the 67-72 stuff, but TnA offroad offers a zero lift shackle flip for the 73-87(91) crowd. http://www.totallynakedauto.com/GM_A...ift_shflip.htm __________________ 90 Chevy Suburban 2500 5.3 swap/th400/np241/14bltSF/10blt. 77 C20 crew cab Silverado. 396/th400. In work.