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11-30-2013, 11:05 PM
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#1 |
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Registered User
Join Date: May 2012
Location: Pennsylvania
Posts: 132
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15x12 rims on 33s?
Looking into buying new rim for my 1985 gmc high sierra stepside. This is my set up currently, 15x8 with 33/12.5/15s and id like to up grade to some MT classic 2s 15x12s, ive seen 15x10 with 33s. But i was curious if anyone has run this before and how is the back spacing? If it matters the truck has a 4 inch suspension lift kit. Heres a picture.
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1985  High Sierra step side 4x4
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12-01-2013, 12:27 AM
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#2 |
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Registered User
Join Date: Aug 2012
Location: Sacramento, CA
Posts: 242
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Re: 15x12 rims on 33s?
Hey Snowneck, I`m only one man with one opinion............... so here we go!
Too short of a tire on too wide of a rim, it will make the truck look goofy, I added a pick of my 78 Silverado. When I bought the truck it had 15X12s with 33s, looked horriable! Ended up putting on 15X10s with 35X12.50, MUCH cleaner look IMO. Nick 
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68 C10 SWB W/ 72 FRONT CLIP 343SB TH400 64 C10 SWB 406SB TH400 74 SUBURBAN 454BB TH400 78 K10 SWB 350 TH350 6" ON 35" BFG MUD 71 K5 350 W/ TBI 700R4 6" ON 38" BFG MUD 00 K3500 DRW BIG BLOCK "DRINKING PRBLM" |
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12-01-2013, 12:43 AM
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#3 |
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20' Daredevil (Ret)
 
Join Date: May 2003
Location: Jefferson State
Posts: 13,728
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Re: 15x12 rims on 33s?
My opinion is the same as Sacramento's above. A 12" rim is just too wide for that tire. It's designed for a 10" wide rim and will work on an 8" rim, though I'd prefer to stay with 10". 12" is just too wide and aside from not working too well (sidewalls can't flex properly for one thing), to me it would just look goofy. Like I said, just my opinion.
Sacramento, that's a great-looking square body on 35s!
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- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
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12-01-2013, 09:31 PM
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#4 |
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Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,728
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Re: 15x12 rims on 33s?
12 inch wheel too wide for a 14 IMO. I had a set of Ground Hawgs on some 15x12 Bart's and it was just too much.
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44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
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12-02-2013, 12:12 AM
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#5 |
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Registered User
Join Date: Feb 2007
Location: Star Valley, WY
Posts: 2,038
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Re: 15x12 rims on 33s?
33-12.50's stretched on 12's are big in Hawaii for some reason. When i was there and asked the beach dudes they said it was for floatation when running on the sandy beaches. I smiled and nodded but that doesn't make any sense. Airing a tire down for floatation makes sense but the side wall needs to flex and 15x12's wont keep the bead easy with a 12.50 at single pressure digit.
So if useability, practicality and looks aren't there then there's no need for it i guess.
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Steve 1971 GMC Longbox. Full Roller Stroker 489 w/ FiTech EFI, Chris Straub Cam/NV4500/205/D60/14B w. Grizzly Locker and 4.11's. 2" Lift on 33's |
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