About to order wheels... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chevjayfsd · 11-21-2013, 10:18 AM

I'm about to order some C57s. I'm going for 18/20 combo. According to their website, 18x8 only come in 4.5" backspace, which I was hoping for a close to 5" backspace for those. For the rears I'm going 20x10 with 5.5" bs, which should fit fine on my 72 rearend.

Should I be worried about the 4.5" backspace on the fronts? This truck will be running a Porterbuilt Stage 1 kit in the front. And in about a year, I'll switch to the Porterbuilt tubular arms. Out back its a stage 2 kit from Porterbuilt.

Thanks for any help!

chevjayfsd · 11-21-2013, 12:13 PM

Just called and confirmed they only offer that 4.5" on the 18x8...

**CC69Rat** · 11-21-2013, 02:16 PM

Most people run 20x8.5 up front with 5.25" BS. So, taking that into consideration, on an 18x8 thinking apples to apples.. you'd only be .25 wider to the outside than a like for like comparison.

As low as your truck will be / is I'd be a little hesitant though. Most of the bagged trucks will go to a 5.5" BS up front to help with turning and fender clearance issues. .. but on an 18 it might be ok (?)

What size tire had you planned to use on the front ?

chevjayfsd · 11-22-2013, 08:18 PM

I'm thinking I'll run 255/40/18 and 295/40/20.

11-21-2013, 10:18 AM	#1
chevjayfsd Project 7dos Join Date: Aug 2001 Location: Abilene, Texas Posts: 876	About to order wheels... I'm about to order some C57s. I'm going for 18/20 combo. According to their website, 18x8 only come in 4.5" backspace, which I was hoping for a close to 5" backspace for those. For the rears I'm going 20x10 with 5.5" bs, which should fit fine on my 72 rearend. Should I be worried about the 4.5" backspace on the fronts? This truck will be running a Porterbuilt Stage 1 kit in the front. And in about a year, I'll switch to the Porterbuilt tubular arms. Out back its a stage 2 kit from Porterbuilt. Thanks for any help! __________________ 7DOS - 1972 C-10 350/350 Porterbuilt/Accuair 20x8.5/20x10 Ride Low or Die PSSST - Yes it's bagged. 7dos build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=610290

11-21-2013, 12:13 PM	#2
chevjayfsd Project 7dos Join Date: Aug 2001 Location: Abilene, Texas Posts: 876	Re: About to order wheels... Just called and confirmed they only offer that 4.5" on the 18x8... __________________ 7DOS - 1972 C-10 350/350 Porterbuilt/Accuair 20x8.5/20x10 Ride Low or Die PSSST - Yes it's bagged. 7dos build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=610290

11-21-2013, 02:16 PM	#3
CC69Rat Registered User Join Date: Jan 2011 Location: Chattanooga TN Posts: 6,214	Re: About to order wheels... Most people run 20x8.5 up front with 5.25" BS. So, taking that into consideration, on an 18x8 thinking apples to apples.. you'd only be .25 wider to the outside than a like for like comparison. As low as your truck will be / is I'd be a little hesitant though. Most of the bagged trucks will go to a 5.5" BS up front to help with turning and fender clearance issues. .. but on an 18 it might be ok (?) What size tire had you planned to use on the front ? __________________ Chad 1967 C10 SWB - Project Savannah - 6.0/4L80 Currently underway 1968 C10 SWB - TOTY 2018, 50th Anniversary Tribute Project * Sold * Pride and Joy 1986 Silverado Short Fleet - Scarlet Sold 1985 Silverado Short Fleet Sold 2022 Jeep Gladiator Mojave 2001 Jeep Cherokee XJ 4x4 - Lifted, Built 1992 Jeep Cherokee XJ 4x4 - Lifted 2013 Honda Accord EX-L v6 Coupe 6spd (wife's ride)

11-22-2013, 08:18 PM	#4
chevjayfsd Project 7dos Join Date: Aug 2001 Location: Abilene, Texas Posts: 876	Re: About to order wheels... I'm thinking I'll run 255/40/18 and 295/40/20. __________________ 7DOS - 1972 C-10 350/350 Porterbuilt/Accuair 20x8.5/20x10 Ride Low or Die PSSST - Yes it's bagged. 7dos build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=610290



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