20x8.5 backspace question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

AusTx68 · 04-22-2010, 04:23 PM

Truck is at the paint shop so I went wheel shopping to prepare for the homecoming. I decided on Foose Nitrous 5's for the look and price. The rears are 20x10 with 5.25" bs. The fronts are 20x8.5 with 4.5" bs. I placed the order online with wheelsforless.com They called me immediatley so say the 20x8.5 is on back order with no word from the manufacturer. They do have them in 4" bs.

It seems everyone is running 20x8.5 with 4.5 bs. Would I have a problem going with the 4" bs?? I heard the original Rallys had 4" bs so I figured it would be ok but wanted to ask here first.

Ackattack · 04-22-2010, 04:36 PM

How much are you lowered and what tires are you going to be using?

AusTx68 · 04-22-2010, 04:51 PM

Quote:

Originally Posted by Ackattack

How much are you lowered and what tires are you going to be using?

Oh yea..I have an ECE 4/6 static drop. Front tires are 255/40/20. Rears are 295/40/20.

I could always buy the available 20x10s and hunt down some 20x8.5 with 4.5 bs. I doubt I'll find them.

My other choice are the Coy C-5s in chrome. They would be about $200 more but I can get them in the size I want.

**lolife99** · 04-22-2010, 06:07 PM

I would run a 5.25"-5.5" bs. on a 8.5" wide wheel up front.
Look at 72BlckButy's thread. His 20's fit perfect in my mind.

04-22-2010, 04:23 PM	#1
AusTx68 Registered User Join Date: Nov 2008 Location: Italy Posts: 1,278	20x8.5 backspace question Truck is at the paint shop so I went wheel shopping to prepare for the homecoming. I decided on Foose Nitrous 5's for the look and price. The rears are 20x10 with 5.25" bs. The fronts are 20x8.5 with 4.5" bs. I placed the order online with wheelsforless.com They called me immediatley so say the 20x8.5 is on back order with no word from the manufacturer. They do have them in 4" bs. It seems everyone is running 20x8.5 with 4.5 bs. Would I have a problem going with the 4" bs?? I heard the original Rallys had 4" bs so I figured it would be ok but wanted to ask here first. __________________ '68 C-10 SWB 383 Stroker (Sold 3/2/2013) '87 R2500 LWB 454 TBI converted to Carb

04-22-2010, 04:36 PM	#2
Ackattack Senior Member Join Date: Aug 2002 Location: Valley Center KS Posts: 3,524	Re: 20x8.5 backspace question How much are you lowered and what tires are you going to be using? __________________ Project Bruiser: 68 Pro-Touring C-10 5.3L / 4L60E Project Ironhide: 97 GMC Crew Cab 4x4 Cummins SOLD: '69 GMC 1/2T SWB TBI'd: Project No Buck Assembly Manual Index Sign up Thread!!! Factory Service Manual Index

04-22-2010, 06:07 PM	#4
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,701	Re: 20x8.5 backspace question I would run a 5.25"-5.5" bs. on a 8.5" wide wheel up front. Look at 72BlckButy's thread. His 20's fit perfect in my mind. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

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