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05-18-2012, 05:57 PM
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#1 |
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Registered User
Join Date: May 2012
Location: Port St. Lucie, Florida
Posts: 21
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1985 K20 Lift
I am trying to find out how hard it would be to install a 8" Skyjacker suspension lift on my 1985 K20? I would also like to see pictures of any year K20 lifted 8". I'd really appriciate feedback! Thank You!
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05-18-2012, 11:39 PM
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#2 |
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Registered User
Join Date: Dec 2010
Location: Pittsburgh, PA
Posts: 1,009
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Re: 1985 K20 Lift
It's not all that hard if you use the right tools. If you have torches, they'll come in handy too. That way you can literally cut the old U-bolts off, burn the bushings out of the springs, and replace it all. There's a lot more to it though, like extending the driveshafts and brake lines. You also want to watch the pitch on your pinion, it may need shimmed. My truck is lifted 9" (6 suspension 3 body) and with the cut-out flares I have it clears 38x15.50's with ease. I could clear 42's if I ran 12.50's and a narrower wheel.
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Steve Member of the Foot Pedal Club '83 Chevy K20: 6" Rough Country, 3" Performance Accessories BL, Bushwacker Cutouts, 38x15.50 Mickey Thompson Baja Claws, 350 HP 350 crate engine from Jegs, Turbo 400 
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05-23-2012, 06:19 PM
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#3 |
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Registered User
Join Date: May 2012
Location: Port St. Lucie, Florida
Posts: 21
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Re: 1985 K20 Lift
When you got your 6" suspension lift on did you have to get a 2wd steering box installed and did you do anything about steering?
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05-23-2012, 06:23 PM
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#4 |
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Registered User
Join Date: May 2012
Location: Port St. Lucie, Florida
Posts: 21
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Re: 1985 K20 Lift
and did you have to lengthened your driveshaft?
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05-23-2012, 11:41 PM
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#5 |
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Registered User
Join Date: May 2008
Location: Spokane, Washington
Posts: 596
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Re: 1985 K20 Lift
You will probably have to lengthen the front driveline for an 8" and maybe the rear.
Steering Correction for 8" options: 1) Raised steering and dropped pitman arm which uses stock steering box. 2) crossover steering which requires a 2wd steering box. Check out www.offroaddesign.com for the crossover items. |
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05-24-2012, 12:22 AM
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#6 |
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Registered User
Join Date: May 2012
Location: Port St. Lucie, Florida
Posts: 21
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Re: 1985 K20 Lift
What if I were to ge a 6" suspension lift.. Do I need to do cross over steering, 2wd steering box and or lengthened my driveshaft?
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05-24-2012, 01:19 AM
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#7 |
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Registered User
Join Date: Jun 2010
Location: Pittsburg, KS
Posts: 953
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Re: 1985 K20 Lift
What are your plans for the truck? Is it going to stay mostly on the road or are you going to be going trail riding with it all the time. The only reason you need cross over steering is if you are going to be flexing the suspension out on the trails. If the truck is going to be a street queen then just use the stock 4x4 steering.
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1980 K10 - 6.2L Diesel/SM465/NP205 Build Thread 1984 K30 CC Dually - "The Tank" 12V Cummins/Nv4500/Np205/D60/D70HD 4" lift & 37's Build Thread 1960 C-60 Dump Truck Make it road worthy! Thread |
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05-24-2012, 07:03 AM
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#8 |
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Registered User
Join Date: May 2012
Location: Anderson SC
Posts: 30
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Re: 1985 K20 Lift
I have a 1987 V10 (K10) truck and put a 8" all-spring lift on it (all-spring is the only way IMHO) and I don't have any trouble with the driveshafts. As I remember reading, its only after you go above an 8" suspension lift that you need custom driveshafts. The Superlift K424 Master Kit will have everything you need to compensate for the added height. Be sure to ask if the kit comes with extended brake lines, mine was supposed to and didn't and I waited too late before putting it on to call about it.
Here is a picture of what mine looks like with an 8" all spring lift (16.5" aluminum mags + 37" tires): 
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