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#1 |
Registered User
![]() Join Date: Oct 2010
Location: MT
Posts: 46
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8 Lug K20 Rim/Tire Question
I've doen some searching on here to try and find a thread specifically on this and haven't been too successful.
I have a 72 K20 with the original 16 wheels with tires which measure out at 30.5" diameter. What I'd like to do is find some nice 8 spoke (or some style I like) rims to throw on it with a little bigger diameter tire. Hoping to get 32-33" in there. Looking at 17-18" rim diameter as well. A few questions I have: - what are my options in terms of searching for rims, eg: when I talk to tire rack or discount tire etc their computer doesn't show rims for those so they can't help out at all but I would guess that say an 85 3/4 8 lug would fit mine as well, I see on here that older ford 8 lugs fit??? What are some examples of other model year vehicles with rims that will and won't fit. - How much back spacing would I need? - What size tire can I get away with without rubbing on a stock ride height 72 K20. Thanks for any input to this. |
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#2 |
Big Red - Now its a SWB!
Join Date: Jun 2009
Location: Oroville, Ca
Posts: 1,624
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Re: 8 Lug K20 Rim/Tire Question
I would think that the newer chevy would fit right, so I'd give them the oldest k20 in their system. I think that you could fit a 33" tire in there just fine because my c20 is dropped 3" in front and 4" in the rear and I have 31" x 10.5" with no rubbing. Ford rims will fit but the hub hole is bigger so all the weight rides on the lugs not the hub. I have a set of old ford wheels on mine because they were cheap and they work fine. If buying used I wouldn't hesitate on the Ford, but if buying new there is no reason to not get ones that fit right. Hope this helps you out.
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68 3/4 ton ![]() ![]() 41 3/4 ton ![]() 01 Tahoe LT 4WD (my daily driver)-Magnaflow Muffler, Rollin on 22's 02 Ford Mustang Convertable (Wife's Car)-Flowmaster 50, Clear corners, Intake, sittin on 18's |
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#3 |
Big Red - Now its a SWB!
Join Date: Jun 2009
Location: Oroville, Ca
Posts: 1,624
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Re: 8 Lug K20 Rim/Tire Question
Oh, didn't see that you are a new guy so,
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68 3/4 ton ![]() ![]() 41 3/4 ton ![]() 01 Tahoe LT 4WD (my daily driver)-Magnaflow Muffler, Rollin on 22's 02 Ford Mustang Convertable (Wife's Car)-Flowmaster 50, Clear corners, Intake, sittin on 18's |
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#4 |
Registered User
Join Date: Aug 2010
Location: roseville, CA.
Posts: 10
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Re: 8 Lug K20 Rim/Tire Question
i have a '69 gmc 3/4 and just put 20X10's on all four corners. i have it lowered 3" in front and 4" in the rear. every thing fits no rubbing. i'm running 275/45/20 which puts my tire height right at 29.5". the back space is 5" on all four. i think just about any 8 X 6.5 would fit. hope this helps.
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#5 |
BlahBlahBlah
Join Date: Feb 2002
Location: Wa.
Posts: 19,881
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Re: 8 Lug K20 Rim/Tire Question
I have a K20 with 33 12.5 16.5 with no lift and they fit fine.
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#6 |
Registered User
![]() Join Date: Oct 2010
Location: MT
Posts: 46
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Re: 8 Lug K20 Rim/Tire Question
Thanks for the input guys, this helps.
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