any 60s truck stepside guys running big tires with factory 12 bolt? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

NCD1966 · 10-20-2016, 03:42 PM

I have a 1966 c10 and Im going to tub the bed but keep the stock rear and suspension. I'm looking to run some 325/50/15 M/T drag radials out back with a 15x10 or 15x12 rim.

just seeing if anyone has done this setup? and what backspacing was used

Thanks in advance

BR3W CITY · 10-20-2016, 06:25 PM

Me, but you already know that lol.

NCD1966 · 10-21-2016, 10:12 AM

yes sir I appreciate that info.

I believe im just going to run a 15x10

I looking hard at the rocket racing launcher (front) & strike (rear) and looks like the biggest is 15x10 with a 5" back spacing. so I might be narrowing my rear to run these unless they make a 6.5" backspacing which i doubt.

My plan is keep the stock size rear to run black steel wheels on wide whites for street use. but sometimes you can get everything you want.

Super73 · 10-21-2016, 06:18 PM

I personally would rather a 325/50/15 be on a 12" wheel. It will put more of the contact patch down. Also a 315/60 being taller will provide more contact patch.

NCD1966 · 10-21-2016, 11:24 PM

Quote:

Originally Posted by Super73

I personally would rather a 325/50/15 be on a 12" wheel. It will put more of the contact patch down. Also a 315/60 being taller will provide more contact patch.

What tire and rear/ suspension are you running?

Super73 · 10-22-2016, 12:20 PM

I ran 315/60/15 MT ET Street radials for years. Over the last year I have been playing on a set of the new MT ET Street R bias plys in a 32x17.50, these measure out to be the same as their 32x14.50 ET Drag and are on the same M5 compound. On a decent to good track, I would take the radial as it is faster, but for the marginal traction no prep deals I have been doing, the big tire is much better.

I used to run factory truck arms. Switched to a 4-link when we caged the truck 4 years ago.

10-20-2016, 03:42 PM	#1
NCD1966 Registered User Join Date: Jun 2010 Location: Lafayette , La Posts: 404	any 60s truck stepside guys running big tires with factory 12 bolt? I have a 1966 c10 and Im going to tub the bed but keep the stock rear and suspension. I'm looking to run some 325/50/15 M/T drag radials out back with a 15x10 or 15x12 rim. just seeing if anyone has done this setup? and what backspacing was used Thanks in advance __________________ 1966 Chevy C10 Stepside 355ci sbc with 3speed OD 2021 GMC Sierra 1500 AT4 6.2 1980 Chevy Camaro z28 383ci 1990 Chevy Suburban 350 tbi 2x4 (sold) 1984 Chevy C10 sliverado short fleet 1997 Chevy C1500 short fleet

10-20-2016, 06:25 PM	#2
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: any 60s truck stepside guys running big tires with factory 12 bolt? Me, but you already know that lol. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

10-21-2016, 10:12 AM	#3
NCD1966 Registered User Join Date: Jun 2010 Location: Lafayette , La Posts: 404	Re: any 60s truck stepside guys running big tires with factory 12 bolt? yes sir I appreciate that info. I believe im just going to run a 15x10 I looking hard at the rocket racing launcher (front) & strike (rear) and looks like the biggest is 15x10 with a 5" back spacing. so I might be narrowing my rear to run these unless they make a 6.5" backspacing which i doubt. My plan is keep the stock size rear to run black steel wheels on wide whites for street use. but sometimes you can get everything you want. __________________ 1966 Chevy C10 Stepside 355ci sbc with 3speed OD 2021 GMC Sierra 1500 AT4 6.2 1980 Chevy Camaro z28 383ci 1990 Chevy Suburban 350 tbi 2x4 (sold) 1984 Chevy C10 sliverado short fleet 1997 Chevy C1500 short fleet

10-21-2016, 06:18 PM	#4
Super73 Registered User Join Date: Nov 2007 Location: Bay Area, Ca Posts: 2,841	Re: any 60s truck stepside guys running big tires with factory 12 bolt? I personally would rather a 325/50/15 be on a 12" wheel. It will put more of the contact patch down. Also a 315/60 being taller will provide more contact patch. __________________ ------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49

10-22-2016, 12:20 PM	#6
Super73 Registered User Join Date: Nov 2007 Location: Bay Area, Ca Posts: 2,841	Re: any 60s truck stepside guys running big tires with factory 12 bolt? I ran 315/60/15 MT ET Street radials for years. Over the last year I have been playing on a set of the new MT ET Street R bias plys in a 32x17.50, these measure out to be the same as their 32x14.50 ET Drag and are on the same M5 compound. On a decent to good track, I would take the radial as it is faster, but for the marginal traction no prep deals I have been doing, the big tire is much better. I used to run factory truck arms. Switched to a 4-link when we caged the truck 4 years ago. __________________ ------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49



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