Rim back spacing? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Shon · 12-11-2009, 12:26 PM

Stock 12bolt under 71 LWB with Drum brakes.
what BS will work?

Will a Weld ProStar 15x10 7.5BS with a 275/60/15 Hoosier DR work?

I probably will have to get an adaptor since i have 5x5 and the rims are 5x4.75.

I want to see what the truck will do with the 6.0 in it and I know the street tires have no chance....truck is not set up to DR that is for sure so it should be hilarious!!!

team39763 · 12-11-2009, 12:33 PM

My truck is a 82, so it might be different. I used a 15X10 with 4.5BS and it put the tire just inside the fender lip and left me several inches on the inside of the tire. I would think 7.5BS would tuck that rim pretty deep and close to the frame. Right?

Shon · 12-17-2009, 11:54 AM

got someone else wanting to get rid of some 15x8 Telstars with 4.5" BS and 5x5 botl pattern. will these work?

I am guessing that if I get this thing on track then I will eventually want the 15x10s so I can get a tire back there for traction.

69trk · 12-17-2009, 08:07 PM

15x10 with 4.5 to a 5.5" of backspacing looks pretty good. i also believe a 7.5" would be to much for a 10" rim, but perfect for a 12" rim... the telestars will work..

**Hart_Rod** · 12-19-2009, 11:36 PM

I've got 15 X 12 with a 6" backspacing (wide rearend).

R/

team39763 · 12-20-2009, 03:35 AM

It sounds like maybe you could run a 2" spacer/adapter and come out with the correct fit. But I'm not sure how safe that is. I know a guy on another forum that did that with some 4-3/4 wheels on his fullsize. He raced with them and everything(I believe it was an 11sec truck). He told me to just make sure I buy quality spacers/adapters and inspect them constantly. But I don't remember who makes the adapters he used.

Hottrucks · 12-20-2009, 09:19 AM

Hart Rod (Rob) I love your truck!!...where is Pace I goto Fla quiete a bit I would love to touch it...lol
Jeff

**Hart_Rod** · 12-20-2009, 11:22 AM

Quote:

Originally Posted by Hottrucks

Hart Rod (Rob) I love your truck!!...where is Pace I goto Fla quiete a bit I would love to touch it...lol
Jeff

It's about 15 miles NE of Pensacola. LMK.

12-11-2009, 12:26 PM	#1
Shon Registered User Join Date: Sep 2005 Location: sc Posts: 1,203	Rim back spacing? Stock 12bolt under 71 LWB with Drum brakes. what BS will work? Will a Weld ProStar 15x10 7.5BS with a 275/60/15 Hoosier DR work? I probably will have to get an adaptor since i have 5x5 and the rims are 5x4.75. I want to see what the truck will do with the 6.0 in it and I know the street tires have no chance....truck is not set up to DR that is for sure so it should be hilarious!!! __________________ 71 Cheyenne C10 LWB cam'd 6.0/T56 Swap

12-11-2009, 12:33 PM	#2
team39763 Registered User Join Date: Feb 2007 Location: Texas Posts: 469	Re: Rim back spacing? My truck is a 82, so it might be different. I used a 15X10 with 4.5BS and it put the tire just inside the fender lip and left me several inches on the inside of the tire. I would think 7.5BS would tuck that rim pretty deep and close to the frame. Right? __________________ 1982 Silverado - SBE, cleaned up GM heads, small cam, TH350, 850 Demon, 4.56 gears, and caltracs. Best time so far 11.8@XXXMPH

12-17-2009, 11:54 AM	#3
Shon Registered User Join Date: Sep 2005 Location: sc Posts: 1,203	Re: Rim back spacing? got someone else wanting to get rid of some 15x8 Telstars with 4.5" BS and 5x5 botl pattern. will these work? I am guessing that if I get this thing on track then I will eventually want the 15x10s so I can get a tire back there for traction. __________________ 71 Cheyenne C10 LWB cam'd 6.0/T56 Swap

12-17-2009, 08:07 PM	#4
69trk Registered User Join Date: Oct 2006 Location: bridgecreek ok. Posts: 1,214	Re: Rim back spacing? 15x10 with 4.5 to a 5.5" of backspacing looks pretty good. i also believe a 7.5" would be to much for a 10" rim, but perfect for a 12" rim... the telestars will work.. __________________ http://67-72chevytrucks.com/vboard/s...d.php?t=494388 431 big block times, changed to a 6.0 ls with turbo 1.58- 60' 7.18- 1/8th mile@95.18 11.37- 1/4 @115.81

12-19-2009, 11:36 PM	#5
Hart_Rod ************* Join Date: Apr 2005 Location: Pensacola, FL Posts: 17,835	Re: Rim back spacing? I've got 15 X 12 with a 6" backspacing (wide rearend). R/ Attached Images __________________ Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3

12-20-2009, 03:35 AM	#6
team39763 Registered User Join Date: Feb 2007 Location: Texas Posts: 469	Re: Rim back spacing? It sounds like maybe you could run a 2" spacer/adapter and come out with the correct fit. But I'm not sure how safe that is. I know a guy on another forum that did that with some 4-3/4 wheels on his fullsize. He raced with them and everything(I believe it was an 11sec truck). He told me to just make sure I buy quality spacers/adapters and inspect them constantly. But I don't remember who makes the adapters he used. __________________ 1982 Silverado - SBE, cleaned up GM heads, small cam, TH350, 850 Demon, 4.56 gears, and caltracs. Best time so far 11.8@XXXMPH

12-20-2009, 09:19 AM	#7
Hottrucks Redefining LowBudget Join Date: Mar 2009 Location: lebanon Cow Hampshire Posts: 4,538	Re: Rim back spacing? Hart Rod (Rob) I love your truck!!...where is Pace I goto Fla quiete a bit I would love to touch it...lol Jeff __________________ 1970 C10 CST fleetside 472 ....big dreams little cash... http://67-72chevytrucks.com/vboard/s...d.php?t=335721 SunShine Syndicate.. Mikes Sandwich Fair Run OCT 8th 2011 http://www.thesandwichfair.com/html/...auto_show.html



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