rim offset and backspacing - The 1947 - Present Chevrolet & GMC Truck Message Board Network

cjb70chevy · 01-14-2013, 10:26 PM

hi i got a 70 c10 lowered 2/4. i wana run 20 inch wheels all way around. id like to run 20x8 in front and 20x10 in the rear. how much offset/backspacing do i need to keep the wheels tucked inside the wheel wells without hitting anything. any advice much apreciated.

67ctener · 01-14-2013, 11:48 PM

5.5" bs in rear and 4.75" bs with an 8" wheel in the front. More common you'll find an 8.5" with a 10" rear and then would run 5.25" bs. Many factors will change an offset and its best to measure for your application. These numbers are what most run though
Posted via Mobile Device

cjb70chevy · 01-15-2013, 08:05 PM

backspacing your just measuring from the middle of the rim on the backside to the wheel well/or frame rail? what are you basing the measurments from?

**lolife99** · 01-15-2013, 08:09 PM

Here you go,...

**lolife99** · 01-15-2013, 08:11 PM

Read, read, read,...
http://67-72chevytrucks.com/vboard/s...d.php?t=442104

**lolife99** · 01-15-2013, 08:14 PM

Good thread with videos,...
http://67-72chevytrucks.com/vboard/s...ht=backspacing

01-14-2013, 10:26 PM	#1
cjb70chevy Registered User Join Date: Jan 2013 Location: lincoln, nebraska Posts: 21	rim offset and backspacing hi i got a 70 c10 lowered 2/4. i wana run 20 inch wheels all way around. id like to run 20x8 in front and 20x10 in the rear. how much offset/backspacing do i need to keep the wheels tucked inside the wheel wells without hitting anything. any advice much apreciated.

01-14-2013, 11:48 PM	#2
67ctener Registered User Join Date: Oct 2012 Location: Arlington Washington Posts: 1,808	Re: rim offset and backspacing 5.5" bs in rear and 4.75" bs with an 8" wheel in the front. More common you'll find an 8.5" with a 10" rear and then would run 5.25" bs. Many factors will change an offset and its best to measure for your application. These numbers are what most run though Posted via Mobile Device __________________ Scott 67 c10 sold 89 c1500 90 k2500 91 s10 #chevyonly

01-15-2013, 08:05 PM	#3
cjb70chevy Registered User Join Date: Jan 2013 Location: lincoln, nebraska Posts: 21	Re: rim offset and backspacing backspacing your just measuring from the middle of the rim on the backside to the wheel well/or frame rail? what are you basing the measurments from?

01-15-2013, 08:09 PM	#4
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,696	Re: rim offset and backspacing Here you go,... Attached Images __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

01-15-2013, 08:11 PM	#5
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,696	Re: rim offset and backspacing Read, read, read,... http://67-72chevytrucks.com/vboard/s...d.php?t=442104 __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

01-15-2013, 08:14 PM	#6
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,696	Re: rim offset and backspacing Good thread with videos,... http://67-72chevytrucks.com/vboard/s...ht=backspacing __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823



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