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Old 07-29-2006, 09:28 PM   #1
outacontrl86
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1/2 springs and 3/4 ton springs the same?

i was wondering if half ton springs and 3/4 ton spring were the same lenth and the 3/4 ton ones be put in a half ton...also what front and rear ends does a 86 k10 4wd have in it i am thinking about getting some 373's for it
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Old 07-29-2006, 09:47 PM   #2
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Re: 1/2 springs and 3/4 ton springs the same?

I'm not sure about legnth but I'm pretty sure the 3/4 is wider, and I believe the center bolt is a different size
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Old 07-29-2006, 09:52 PM   #3
outacontrl86
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Re: 1/2 springs and 3/4 ton springs the same?

what do you mean buy center bolt?? i meant leaf springs if you were talkin about coils..sorry
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Old 07-31-2006, 12:23 PM   #4
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Re: 1/2 springs and 3/4 ton springs the same?

The center bolt is the bolt on that lines up the rear axle to the center of the leaf spring. That is why its called the center bolt. Keeps everything square so you can tighten the u bolts and have everything straight.
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Old 07-31-2006, 01:33 PM   #5
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Re: 1/2 springs and 3/4 ton springs the same?

I dont think they will change out. There are two lenghts 52 or 56 in. Your K10 most likely has a gm 10 bolt 8.5 differenetial.
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Old 07-31-2006, 02:58 PM   #6
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Re: 1/2 springs and 3/4 ton springs the same?

3/4T springs are longer, so they won't work without moving the rear spring perch.
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Old 08-01-2006, 12:06 AM   #7
outacontrl86
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Re: 1/2 springs and 3/4 ton springs the same?

yes i measerd them today 52 inches. for the back but i am not sure about the front thanks
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Old 08-01-2006, 10:33 PM   #8
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Re: 1/2 springs and 3/4 ton springs the same?

My dad put 3/4 ton springs in his 1984 Gmc sierra 1500 2wd pickup.. I remember them using the torch alot, but other than that.. the rear end is the same... and everything worked out great.. the rear of the truck sits up 4 inches higher than before...
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Old 08-01-2006, 10:37 PM   #9
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Re: 1/2 springs and 3/4 ton springs the same?

thinking i already know the answer, but can't you just re-arch the leafs to fit the smaller length, using a come-along or other similar device?
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