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#1 |
Registered User
Join Date: Oct 2009
Location: Great White North
Posts: 1,520
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Largest tire/wheels on a stock ride height 72 K5
I have a 72 Blazer 4wd with a 4 inch susp lift. I want to remove it and return to the stock ride height. What is the largest rim/tire combo I can use. I'm thinking about using 15" Chev truck rally rims. I'm guessing that 32" x 11.5 on 15's would be the largest. What are you stock susp guys running?
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Jeff. '72 Blazer K5 "Camshaft opinions are like belly buttons; everyone has one and no two are alike" My Blazer Build: http://67-72chevytrucks.com/vboard/s...d.php?t=626752 My Engine Build: http://67-72chevytrucks.com/vboard/s...d.php?t=637336 |
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#2 |
Registered User
Join Date: Mar 2007
Location: Oakland, Ca
Posts: 1,382
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Re: Largest tire/wheels on a stock ride height 72 K5
When I bought my Blazer it had 33x12.50x15 (pretty sure they were 15x10 wagon wheels with maybe 3.5" BS) and they worked fine on stock worn out suspension.
Backspacing and how worn out the springs will play into what you can run. I would stick with the 32's to be safe. |
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#3 |
Registered User
![]() Join Date: Jan 2007
Location: Columbus, Ohio
Posts: 4,339
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Re: Largest tire/wheels on a stock ride height 72 K5
I think the blue blazer I am building has 33s on it right now [but I would have to check to be certain] with stock suspension.
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#4 |
SKINNY TIRES RULE!
Join Date: Sep 2001
Location: Bothell, WA
Posts: 11,049
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Re: Largest tire/wheels on a stock ride height 72 K5
I've always heard that 33's will fit on a stock ride, but keep in mind, the actual tire diameter may be different than the size. I've seen 35" that are closer to 33" tall and some closer to 37" tall.
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bouncytruck 1972 K5 The Hauler 1994 K1500 Suburban The Daily2010 Kia Soul Wife's Ride2014 Fiat 500L |
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#5 |
Registered User
Join Date: Dec 1999
Location: Old Mission, MI, USA
Posts: 2,510
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Re: Largest tire/wheels on a stock ride height 72 K5
You can run 33 X 12.50s as long as you don't twist up the suspension on the trails. 33s will rub with a 4 inch lift if you flex the suspension close to maximum.
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Tim |
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#6 |
Registered User
Join Date: Oct 2009
Location: Great White North
Posts: 1,520
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Re: Largest tire/wheels on a stock ride height 72 K5
This Blazer won't be offroading, at least not bad enough to worry about twisting. Do GM truck rally rims come in a variety of offsets or are they all the same?
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Jeff. '72 Blazer K5 "Camshaft opinions are like belly buttons; everyone has one and no two are alike" My Blazer Build: http://67-72chevytrucks.com/vboard/s...d.php?t=626752 My Engine Build: http://67-72chevytrucks.com/vboard/s...d.php?t=637336 |
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#7 |
Registered User
Join Date: Mar 2010
Location: Kalispell Montana
Posts: 73
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Re: Largest tire/wheels on a stock ride height 72 K5
Ive got 33,12.50s on mine right now and it's all stock, havent had it rub yet..
What are you going to do with the old lift??? All spring? or spring & block? |
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#8 |
Workin to live...
Join Date: Jun 2003
Location: Texas Hill Country
Posts: 261
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Re: Largest tire/wheels on a stock ride height 72 K5
33x12.50 here also, stock suspension.
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Jason |
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#9 |
Senior Member
![]() Join Date: Jan 2000
Location: LHC, AZ
Posts: 385
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Re: Largest tire/wheels on a stock ride height 72 K5
33/12.50 on the Jimmy. I don't do any off roading either.
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70 Jimmy 4x4 71 GMC 2500 Too bad stupidity isn't painful |
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#10 |
Registered User
Join Date: Oct 2009
Location: Prescott, Arizona
Posts: 2,396
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Re: Largest tire/wheels on a stock ride height 72 K5
I run 33 x 10.5's (BFG all terrains) on ours with a 15 x 8 aluminum wheel and it's just fine with stock ride height on original suspension.
We do some mild trail riding around the mountains here, but I generally don't care to take the truck anywhere it might bottom out or scrape, so we stick to the mild stuff. It's 99% a daily driver though. Never had an issue with rubbing. |
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#11 |
Registered User
Join Date: Jan 2008
Location: Pincher Creek, Alberta, Canada
Posts: 140
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Re: Largest tire/wheels on a stock ride height 72 K5
Some time ago I ran 31x10.50 on stock rallys with a saggy old suspension on mine. There was no issue. With a 4" lift now, it has 305 -70/16. BTW, where are you located? Cheers.
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#12 |
Registered User
Join Date: Oct 2009
Location: Great White North
Posts: 1,520
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Re: Largest tire/wheels on a stock ride height 72 K5
Lift is front springs with rear blocks. I'm not going to use them anymore so ill be selling but it will be a couple of months before I get them out. If your interested I can keep it in mind.
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Jeff. '72 Blazer K5 "Camshaft opinions are like belly buttons; everyone has one and no two are alike" My Blazer Build: http://67-72chevytrucks.com/vboard/s...d.php?t=626752 My Engine Build: http://67-72chevytrucks.com/vboard/s...d.php?t=637336 |
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#13 |
Registered User
Join Date: Oct 2009
Location: Great White North
Posts: 1,520
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Re: Largest tire/wheels on a stock ride height 72 K5
Way east of you. I'm in southwestern Ontario.
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Jeff. '72 Blazer K5 "Camshaft opinions are like belly buttons; everyone has one and no two are alike" My Blazer Build: http://67-72chevytrucks.com/vboard/s...d.php?t=626752 My Engine Build: http://67-72chevytrucks.com/vboard/s...d.php?t=637336 |
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#14 |
Registered User
Join Date: Oct 2009
Location: Great White North
Posts: 1,520
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Re: Largest tire/wheels on a stock ride height 72 K5
So it looks like quite a few people are running 33's on stock suspension. I'm looking for pics of stock suspension rides running GM truck rally rims. If anyone could post that would be great. Cheers.
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Jeff. '72 Blazer K5 "Camshaft opinions are like belly buttons; everyone has one and no two are alike" My Blazer Build: http://67-72chevytrucks.com/vboard/s...d.php?t=626752 My Engine Build: http://67-72chevytrucks.com/vboard/s...d.php?t=637336 |
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#15 |
Registered User
Join Date: Sep 2008
Location: CASA GRANDE AZ
Posts: 4,276
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Re: Largest tire/wheels on a stock ride height 72 K5
Heres mine 33x12.5x15 stock suspension with rallies
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70 SWB STEPSIDE 70 BLAZER 09 challenger |
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#16 |
Registered User
Join Date: Oct 2009
Location: Great White North
Posts: 1,520
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Re: Largest tire/wheels on a stock ride height 72 K5
Looks great! Are the rims 8 or 10 inch wide? Like the color too, is that the factory bronze?
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Jeff. '72 Blazer K5 "Camshaft opinions are like belly buttons; everyone has one and no two are alike" My Blazer Build: http://67-72chevytrucks.com/vboard/s...d.php?t=626752 My Engine Build: http://67-72chevytrucks.com/vboard/s...d.php?t=637336 |
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#17 |
Registered User
Join Date: Oct 2009
Location: Prescott, Arizona
Posts: 2,396
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Re: Largest tire/wheels on a stock ride height 72 K5
Here are a couple of mine, out on the trail and at home. Not factory ralley's but same or similar offsets.
I actually plan to locate a set of factory steel wheels (dog dish hubcap style) in 15 x 8's and paint them white for a different look. Hope this helps. ![]() ![]() |
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#18 |
Registered User
Join Date: Sep 2008
Location: CASA GRANDE AZ
Posts: 4,276
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Re: Largest tire/wheels on a stock ride height 72 K5
There 8s the color is copperhead pearl
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70 SWB STEPSIDE 70 BLAZER 09 challenger |
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#19 |
Registered User
Join Date: May 2007
Location: San Antonio
Posts: 993
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Re: Largest tire/wheels on a stock ride height 72 K5
Not rallys, but here's mine before the lift.
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#20 |
Chance
![]() Join Date: Sep 2001
Location: Belcourt ,ND, USA
Posts: 750
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Re: Largest tire/wheels on a stock ride height 72 K5
How do you remove a 4 inch lift! Just buy stock leaf springs and shocks? I have a 1972 blazer that is lift which I want to return to stoc height. Any help is appreciated.
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1968 Chevrolet Stepside BB 396 w/TH400 1972 Chevrolet 3/4 Ton 4x4 BB 496 w/TH400 |
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