wheel backspace/offset for 17x8 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

cparman · 10-18-2009, 04:07 PM

I am getting ready to get in trouble with Big Boss. Looking for backspace information for a 17x8 wheel for my 2WD Blazer. What are you guys running for tire size, and wheel offset/backspace. I am thinking that I want to run the same size tire and wheel all round, but could be swayed. When done with the suspension, which I want to be spring/shock or coil over, I want my Blazer to sit level. Currently it looks pretty bad.
30 1/2" at top of rear wheel arch
28" at top of front wheel arch
THANKS TO ALL !

**lolife99** · 10-18-2009, 07:58 PM

I had 17x8's (5" bs) and 17x9.5's (4.5" bs) with 255/50-17's and 275/50-17's.
You need a wider rear tire to help with the front "track width" being wider than the rear track width.
I had these on my old '82 2wd blazer and for a while,... they were on my '71 2wd blazer.

cparman · 10-18-2009, 08:02 PM

Thank you. I was kind of heading that way. Do you have any pictures of that setup? I just got off the Nitto site, and the 275 is 27.8 tall, and the 255 is 27.08 . The rim recommendation is 8 front and 9.5 rear. Any suggestions for the static drop? What to do to the front and rear?

**lolife99** · 10-18-2009, 08:07 PM

Quote:

Originally Posted by cparman

Thank you. I was kind of heading that way. Do you have any pictures of that setup? I just got off the Nitto site, and the 275 is 27.8 tall, and the 255 is 27.08 . The rim recommendation is 8 front and 9.5 rear. Any suggestions for the static drop? What to do to the front and rear?

What year is your blazer?
My '82 was about a 4"/5" drop.

My suggestion would be as LOW as possible!

cparman · 10-18-2009, 08:19 PM

The vin plate on the door says it is a 1972 4wd? The doors are 71, the frame is a 2wd. Currently it looks to have drop springs all round, with out drop spindles up front. The rear springs are so soft that when I put the hard top on it sits level, but HEY I live in florida and the top is not on it much. One of my concerns is just that. How do I go about a 4/5 or 4/6 drop and have the Blazer sit level top on top off. I had a set of NT450s on my Chevelle, that I had Diamond back classic red line, really like Nitto Tires.

**lolife99** · 10-18-2009, 08:55 PM

Here's my '71 blazer with a 4/6 static drop and these wheels.

**lolife99** · 10-18-2009, 08:03 PM

Here's a pic.
The tires are Nitto 450's.

**lolife99** · 10-18-2009, 08:45 PM

I would say,... do drop spindles and springs up front, and run air bags on schrader valves in the rear,... so you can adjust for the top being on or off.

10-18-2009, 04:07 PM	#1
cparman sharp as a marble Join Date: Jan 2007 Location: atlantic beach,florida Posts: 1,082	wheel backspace/offset for 17x8 I am getting ready to get in trouble with Big Boss. Looking for backspace information for a 17x8 wheel for my 2WD Blazer. What are you guys running for tire size, and wheel offset/backspace. I am thinking that I want to run the same size tire and wheel all round, but could be swayed. When done with the suspension, which I want to be spring/shock or coil over, I want my Blazer to sit level. Currently it looks pretty bad. 30 1/2" at top of rear wheel arch 28" at top of front wheel arch THANKS TO ALL !

10-18-2009, 07:58 PM	#2
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	Re: wheel backspace/offset for 17x8 I had 17x8's (5" bs) and 17x9.5's (4.5" bs) with 255/50-17's and 275/50-17's. You need a wider rear tire to help with the front "track width" being wider than the rear track width. I had these on my old '82 2wd blazer and for a while,... they were on my '71 2wd blazer. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

10-18-2009, 08:02 PM	#3
cparman sharp as a marble Join Date: Jan 2007 Location: atlantic beach,florida Posts: 1,082	Re: wheel backspace/offset for 17x8 Thank you. I was kind of heading that way. Do you have any pictures of that setup? I just got off the Nitto site, and the 275 is 27.8 tall, and the 255 is 27.08 . The rim recommendation is 8 front and 9.5 rear. Any suggestions for the static drop? What to do to the front and rear?

10-18-2009, 08:19 PM	#5
cparman sharp as a marble Join Date: Jan 2007 Location: atlantic beach,florida Posts: 1,082	Re: wheel backspace/offset for 17x8 The vin plate on the door says it is a 1972 4wd? The doors are 71, the frame is a 2wd. Currently it looks to have drop springs all round, with out drop spindles up front. The rear springs are so soft that when I put the hard top on it sits level, but HEY I live in florida and the top is not on it much. One of my concerns is just that. How do I go about a 4/5 or 4/6 drop and have the Blazer sit level top on top off. I had a set of NT450s on my Chevelle, that I had Diamond back classic red line, really like Nitto Tires.

10-18-2009, 08:55 PM	#6
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	Re: wheel backspace/offset for 17x8 Here's my '71 blazer with a 4/6 static drop and these wheels. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

10-18-2009, 08:03 PM	#7
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	Re: wheel backspace/offset for 17x8 Here's a pic. The tires are Nitto 450's. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

10-18-2009, 08:45 PM	#8
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	Re: wheel backspace/offset for 17x8 I would say,... do drop spindles and springs up front, and run air bags on schrader valves in the rear,... so you can adjust for the top being on or off. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.