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Old 04-17-2017, 12:24 PM   #1
dragn91
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Need taller springs for my k30 dually

My k30s springs are sagging terribly and i need to source some replacements can i use a 4 inch lift spring spring from a k10? I only want it to go back up to stock heigh maybe plus an inch ive been looking for a used set of cucv springs since there usually low mileage i figure they wouldent be as beat as mine maybe add a zero rate to it but cant source any but cane across a set of 4 inch front and rear lift springs for a k10 pretty cheap id ony use the front but i was wondering if they would even fit under a one ton or hold the weight? Any suggestions
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Old 04-17-2017, 01:12 PM   #2
Mattchu60
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Re: Need taller springs for my k30 dually

I think the fronts will fit as I believe all the fronts are the same length. The rears are likely different (k10 used 52" springs, the K20/30 used a 56" spring in the rear). They wouldn't have the same load capacity as your K30 original springs.

I recently bought springs online from one of the spring dealers (mine was Michigan Truck Spring). I would suggest looking at some websites for replacement springs, delivery was pretty quick - less than a week from when I ordered.
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Old 04-17-2017, 01:19 PM   #3
obijuan
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Re: Need taller springs for my k30 dually

I fit 37s on my 4 inch springs. I dont think thats what youre looking for. 2.5" might be more what you have in mind.

73-87/91 square body trucks all share the same front springs. 1/2 ton rears are 52" long where 3/4 ton and 1 ton are 56" with varying capacities.

If the lift kit you found is blocks in the rear then they will fit your k30. Just ubolts are the only change.
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Old 04-17-2017, 09:02 PM   #4
Half Assed
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Re: Need taller springs for my k30 dually

These are replacement 4-leaf packs for the front of a K30.

https://www.generalspringkc.com/product_p/22-402hd.htm
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Old 04-18-2017, 08:05 PM   #5
dragn91
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Re: Need taller springs for my k30 dually

Thanks for that i think ill just order a set of those and if its a little to low add a zero rate i dont want it lifted just more level the rear springs were replaced by the p.o and the front are sagged so its super raked and i hate it. Plus the front bump stops are only 3/4-1" from hitting there so sagged
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