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#1 |
Registered User
![]() Join Date: Oct 2010
Location: MT
Posts: 46
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71-72 K20 level or 4" and 33/35's
Doing some digging on here to try and help me decide a lift and tire size for my 72 K20 lwb as I rebuild her this winter. I see some pics on here which I'm sure fit the bill of what I'm looking for but usually just a pic with no description of the lift or tire size so anyone interested to post some pics of your 71/72 K20 (not that any of the other years wouldn't help so feel free with 67-72) with either:
- level kit and 33's (not sure if a 35 will fit under a couple inches raised in the front) - 4" lift with 33's or 35's (unless 35's don't fit and I don't know that yet..) Can you please post the lift (brand too if known) and exact tire size if you don't mind. Thanks for the input. |
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#2 |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,392
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Re: 71-72 K20 level or 4" and 33/35's
35:12.5s should fit with 4" 33s will fit a stock truck without sagging springs. Mine is stock but ive messed with lifts on these things before.
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Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne: 5” lift, 35’s, front dana 60 blah blah blah… http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB: 4” lift 33”s… in a million pieces http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's |
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#3 |
Registered User
![]() Join Date: Nov 2007
Location: Hermiston, OR
Posts: 947
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Re: 71-72 K20 level or 4" and 33/35's
Here is a 70 with 6" lift on 35" (34.5") tires.
I read on here that a 4" lift on 35s would rub, but I never tried it. BTW if you have a dana 44 front and want a lifted steering arm, I have one I never used I'd sell kinda cheap, PM me if interested. ![]()
__________________
Running in place gets you nowhere fast. -me 1968 GTO 4-spd covnvertible 1970 K-20 4-speed, factory AC. |
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#4 |
Registered User
![]() Join Date: Oct 2010
Location: MT
Posts: 46
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Re: 71-72 K20 level or 4" and 33/35's
Thanks, from that pic it looks like a 4" would be pretty dang close at the front where your tire is turned with 35's. (nice rims btw, I run those on my gen 1 cummins and am considering for the 72).
Any others out there, 4" and 33's/35's or level kit with 33's? |
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#5 |
Registered User
![]() Join Date: Nov 2007
Location: Hermiston, OR
Posts: 947
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Re: 71-72 K20 level or 4" and 33/35's
Thanks, 6" is plenty of lift just to have the 14 bolt drag anyway!
__________________
Running in place gets you nowhere fast. -me 1968 GTO 4-spd covnvertible 1970 K-20 4-speed, factory AC. |
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#6 |
Registered User
![]() Join Date: Aug 2013
Location: Atlanta, GA
Posts: 702
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Re: 71-72 K20 level or 4" and 33/35's
You should look at the thread here: http://67-72chevytrucks.com/vboard/s...d.php?t=561516
Lots of pictures on stance. Mine is a 1969 with a 4" suspension and 35's. No clearance issues at all. Last edited by Tdrcreyn4; 08-31-2015 at 10:21 AM. |
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#7 |
Senior Member
![]() Join Date: May 2012
Location: Scottsdale, AZ
Posts: 1,906
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Re: 71-72 K20 level or 4" and 33/35's
Here you go 4" Skyjacker front, 4" ORD shackle flip with zero rate rear, 285/70R 17 (just shy of 33") tires
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White K20 |
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#8 |
Registered User
Join Date: Dec 2010
Location: livingston co.mi
Posts: 2,457
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Re: 71-72 K20 level or 4" and 33/35's
Mine has a 4'' and the 35's are close to the front cup when turning
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California 65 GTO---Texas 64 burb 283 ---Oklahoma 67 CST SWB BBW wood bed 327 2004r---New Mexico 72 k10 350 350 auto---Georga 72 short step project |
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#9 |
Registered User
Join Date: Jun 2011
Location: Osceola, Ia
Posts: 2,017
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Re: 71-72 K20 level or 4" and 33/35's
Normal driving no rub..
4inch rough country 315/16s ![]()
__________________
Shawn 68 chevy K/20 05 chevy 3/4 4x4 71 short step-sold ![]() 71 chevy Beauville van My build. http://67-72chevytrucks.com/vboard/s...d.php?t=633039 |
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#10 |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,392
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Re: 71-72 K20 level or 4" and 33/35's
How do you like that rough country lift? I've contemplated getting it for mine down the road...
__________________
Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne: 5” lift, 35’s, front dana 60 blah blah blah… http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB: 4” lift 33”s… in a million pieces http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's |
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#11 |
Special Order
![]() ![]() Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,858
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Re: 71-72 K20 level or 4" and 33/35's
"Level kit" is an IFS thing since those trucks sit nose down like a 2wd. So, step away from that term here. You need 4" of lift for 35/12.50s and it can rub in extreme positions. What no one is mentioning is wheel width. 8" over 10" makes all the difference in the world in this lift/tire range. 8" should work fine with rarely barely a rub
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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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#12 |
Registered User
Join Date: Jun 2011
Location: Osceola, Ia
Posts: 2,017
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Re: 71-72 K20 level or 4" and 33/35's
57TASKFORCE
No issues with the lift. I have never run any other to compare, but i think it rides great. Way better than i expected. Again, no off-roading though. As far as rims go, mine are 10inch. Yes they are close to the cup, but they do NOT rub with normal full wheel turn. With a flex situation, probably.
__________________
Shawn 68 chevy K/20 05 chevy 3/4 4x4 71 short step-sold ![]() 71 chevy Beauville van My build. http://67-72chevytrucks.com/vboard/s...d.php?t=633039 |
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#13 |
Senior Member
![]() Join Date: May 2012
Location: Scottsdale, AZ
Posts: 1,906
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Re: 71-72 K20 level or 4" and 33/35's
what special-K said plus offset. But you, also, may want to consider your driving habits and gearing. I always buy tires to fine tune my gearing issues, as they are rubber gears. You could be real bummed out with 35s... just sayin... although I have been know to let form rule over function!
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White K20 |
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#14 |
Registered User
Join Date: Jan 2013
Location: Tucson, AZ
Posts: 60
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Re: 71-72 K20 level or 4" and 33/35's
No lift.
32.5 x 11.5 BFG Mud Terrains on 10" wheels. No Rub. (even during some pretty gnarly wheelin') |
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#15 |
Senior Member
![]() Join Date: Oct 2009
Location: Godley, TX
Posts: 17,961
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Re: 71-72 K20 level or 4" and 33/35's
that sure gets my vote rmblfsh. I prefer level. In fact, thought you meant you were trying to decide between level (no lift) w/33's or 4" with 35's... If you in fact meant a leveling kit, no, that's not what you need. I like 2" lifts as well. But it's all personal preference - I like em tall n skinny (tires) with minimal or no lift. Some like em sky high. Hopefully folks pics will help you decide.
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#16 |
Registered User
Join Date: Jun 2011
Location: Osceola, Ia
Posts: 2,017
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Re: 71-72 K20 level or 4" and 33/35's
^^x2. Yeah that thing looks sweet. Needs nothing.
__________________
Shawn 68 chevy K/20 05 chevy 3/4 4x4 71 short step-sold ![]() 71 chevy Beauville van My build. http://67-72chevytrucks.com/vboard/s...d.php?t=633039 |
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#17 |
Registered User
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
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Re: 71-72 K20 level or 4" and 33/35's
__________________
Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's |
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#18 |
Registered User
![]() Join Date: Oct 2010
Location: MT
Posts: 46
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Re: 71-72 K20 level or 4" and 33/35's
Special-K you're absolutely right on with me mentioning "level". For some reason I was thinking the truck sits front low, but it is pretty level. So 2" or 4", 33 vs 35 is where I'm sitting.
Truck has 4.11's, will be a road queen with no off road to speak of so is purely me going with a certain look I like. Great call on rim width and offset, wasn't on my mind. But also haven't done any searches for that yet and figure there may be some threads out there for me to find. Assuming say ~10" wides work on 8's and 12.5's on 10's as a rough idea? I'd likely stay to a width that won't have a bunch of tire hanging out the side, which I'm hoping some of these pics will help me figure what that is. Nice trucks, keep em coming in that tire/lift range. Thanks |
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#19 |
Registered User
![]() Join Date: Oct 2010
Location: MT
Posts: 46
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Re: 71-72 K20 level or 4" and 33/35's
sboris, meant to ask if you have any full side shots of your rig?
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#20 | |
Registered User
Join Date: Jun 2011
Location: Osceola, Ia
Posts: 2,017
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Re: 71-72 K20 level or 4" and 33/35's
Quote:
Well heres a quicky, dirt and all. Need more let me know. ![]()
__________________
Shawn 68 chevy K/20 05 chevy 3/4 4x4 71 short step-sold ![]() 71 chevy Beauville van My build. http://67-72chevytrucks.com/vboard/s...d.php?t=633039 Last edited by sboris; 09-05-2015 at 01:38 PM. Reason: Spell |
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#21 |
Registered User
Join Date: May 2011
Location: Oakley, Michigan
Posts: 735
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Re: 71-72 K20 level or 4" and 33/35's
Question... would a K10 with say a Skyjacker 4" all spring kit (all new springs) sit the same as a K20 with a SkyJacker 4" all spring kit? They do not sell a 1/2 ton and a 3/4 ton kit. They are the same. So, once, you start replacing the springs, other than the axles, themselves (Dana 44 for both up front) would there be any difference in clearance between a K10 and K20?
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#22 |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,392
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Re: 71-72 K20 level or 4" and 33/35's
I wouldn't think there would be much difference at all. Both long bed k/trucks (10&20) use the same identical frame. Springs and axles are the only real difference between the two. So if you've got a k/20 then you could possibly loose some weight carrying ability with a spring swap but it should as far as I can see sit the same on either truck. Somebody correct me if I'm wrong on that.
__________________
Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne: 5” lift, 35’s, front dana 60 blah blah blah… http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB: 4” lift 33”s… in a million pieces http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's |
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#23 |
Registered User
Join Date: Jun 2011
Location: Osceola, Ia
Posts: 2,017
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Re: 71-72 K20 level or 4" and 33/35's
^^ agree. Makes sense. K 10 and k20 use the same springs w/rough country.
__________________
Shawn 68 chevy K/20 05 chevy 3/4 4x4 71 short step-sold ![]() 71 chevy Beauville van My build. http://67-72chevytrucks.com/vboard/s...d.php?t=633039 |
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#24 |
Registered User
Join Date: May 2014
Location: Bradford, Maine
Posts: 10
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Re: 71-72 K20 level or 4" and 33/35's
My 70 restoration project with 33s.
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#25 |
Special Order
![]() ![]() Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,858
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Re: 71-72 K20 level or 4" and 33/35's
No lift (actually, 1.5" blocks on rear) with same 33/12.50 tires on 9.75" steelies and 8.25" alloys, stock 6" wheels with 235/85s, and 4" lift with 35/12.50s on 9.75" slots. Then another truck with 6" lift, 12.50/35s, & 10" wheels
__________________
"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 ~ Last edited by special-K; 04-30-2016 at 06:47 PM. |
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