Rim Size and BackSpacing for 85 Blazer - The 1947 - Present Chevrolet & GMC Truck Message Board Network

IoWnZa · 09-13-2003, 10:27 PM

I have an 85 Blazer awating 33x12.50R15 BF Goodrich All Terrains. I want to get the proper Rims. I am pretty sure that 15x10's will be fine.

You guys are the Pro's. What is the Back Spacing that I need to get? 3 5/8 or 4 1/4.

Thanks,

-IoWnZa

**JIMs70GMC** · 09-13-2003, 11:58 PM

Either should do. 3 5/8 will stick out a little further. Welcome to the board.

IoWnZa · 09-14-2003, 06:39 PM

Quote:

Originally posted by JIMs70GMC
Either should do. 3 5/8 will stick out a little further. Welcome to the board.

Hmmm...

So you are saying that if I get 3 5/8's then my Tires are going to stick out from the Body a little bit?

I like that...

Thanks for your help,

-IoWnZa

Destructo · 09-24-2003, 09:33 PM

My fronts are almost half way out with 31x10.5's I don't know what kind of backspacing I have or how wide my rims are though, I like how the fronts stick out some though, The backs are about flush I think.

Bill W · 09-26-2003, 11:00 AM

Stock rally style wheels are 15x8, with 4 inch backspacing. I have a set on my suburban and pickup.

Bill

darksaga · 09-27-2003, 04:09 AM

IoWnZa, Destructo

wow 2 other guys from the [H] forums welcome guys

IoWnZa · 09-30-2003, 12:18 PM

Quote:

Originally posted by Destructo
My fronts are almost half way out with 31x10.5's I don't know what kind of backspacing I have or how wide my rims are though, I like how the fronts stick out some though, The backs are about flush I think.

That is because the front of wider the then rear. GM Did that to help with turning and such.

I bought some nice $150/each Aluminum Spacers (The good ones)for my rear wheels so that all 4 wheels are flush, cause I dont like it that the rear wheels are not as wide as the front. Wider is better!

-IoWnZa

darksaga · 09-30-2003, 01:21 PM

did you get the ones with studs on them or are you having longer studs put in?

IoWnZa · 09-30-2003, 06:55 PM

I got the ones that you put on, and the put your wheel on after it, and they bolt direcly onto the wheel, they are really nice ones. I had to get the longer studs to put them on, so that they would be secure. The Blazer looks A LOT better once all the wheels are the same width like that.

-IoWnZa

darksaga · 10-01-2003, 01:00 AM

where did you end up getting the spacers from?

IoWnZa · 10-01-2003, 11:38 AM

Quote:

Originally posted by darksaga
where did you end up getting the spacers from?

I had the shop that put my new Rear End get them. The guys name is Brett and he is a serious off-roader. He has them on his Bronco that he is fabricating from Fiberglass cause his other Bronco was rusting out too much. His new one is sick. Hummer Tires, the works.

-IoWnZa

09-13-2003, 10:27 PM	#1
IoWnZa Big Block Blazer Join Date: Sep 2003 Location: Ellsworth, ME. Posts: 509	Rim Size and BackSpacing for 85 Blazer I have an 85 Blazer awating 33x12.50R15 BF Goodrich All Terrains. I want to get the proper Rims. I am pretty sure that 15x10's will be fine. You guys are the Pro's. What is the Back Spacing that I need to get? 3 5/8 or 4 1/4. Thanks, -IoWnZa __________________ [1985 Chevrolet K5 Blazer][454BBC][TH400][NP241][Dana 44][GM 12 Bolt w/ Eaton LSD][Hedman HTC Hedders][Dual 2.5" Stainless Steel Exhaust][Hedman Turbo Muffler's][Dual Spal's 14" Electric Fan's][32x11.50R15 BF Goodrich All Terrain TA KO's on 15x8 Rallys]

09-13-2003, 11:58 PM	#2
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Either should do. 3 5/8 will stick out a little further. Welcome to the board. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

09-26-2003, 11:00 AM	#5
Bill W Registered User Join Date: Mar 2003 Location: Oregon Posts: 229	stock wheels Stock rally style wheels are 15x8, with 4 inch backspacing. I have a set on my suburban and pickup. Bill

09-27-2003, 04:09 AM	#6
darksaga Registered User Join Date: Nov 2002 Location: santa cruz cali Posts: 118	IoWnZa, Destructo wow 2 other guys from the [H] forums welcome guys __________________ 1968 gmc 3/4 4x4 longbed. built 469 700r4 (needs a th400 REAL SOON!), 14bolt ff rear 73 3/4 dana 44 1970 chevelle all wheel disc, tubular rear control arms tall spindle swap up front matching #'s 350 work in Progress

09-30-2003, 01:21 PM	#8
darksaga Registered User Join Date: Nov 2002 Location: santa cruz cali Posts: 118	did you get the ones with studs on them or are you having longer studs put in? __________________ 1968 gmc 3/4 4x4 longbed. built 469 700r4 (needs a th400 REAL SOON!), 14bolt ff rear 73 3/4 dana 44 1970 chevelle all wheel disc, tubular rear control arms tall spindle swap up front matching #'s 350 work in Progress

09-24-2003, 09:33 PM	#4
Destructo Registered User Join Date: Sep 2003 Location: Lewisville, NC Posts: 1,836	My fronts are almost half way out with 31x10.5's I don't know what kind of backspacing I have or how wide my rims are though, I like how the fronts stick out some though, The backs are about flush I think.

09-30-2003, 06:55 PM	#9
IoWnZa Big Block Blazer Join Date: Sep 2003 Location: Ellsworth, ME. Posts: 509	I got the ones that you put on, and the put your wheel on after it, and they bolt direcly onto the wheel, they are really nice ones. I had to get the longer studs to put them on, so that they would be secure. The Blazer looks A LOT better once all the wheels are the same width like that. -IoWnZa __________________ [1985 Chevrolet K5 Blazer][454BBC][TH400][NP241][Dana 44][GM 12 Bolt w/ Eaton LSD][Hedman HTC Hedders][Dual 2.5" Stainless Steel Exhaust][Hedman Turbo Muffler's][Dual Spal's 14" Electric Fan's][32x11.50R15 BF Goodrich All Terrain TA KO's on 15x8 Rallys]

10-01-2003, 01:00 AM	#10
darksaga Registered User Join Date: Nov 2002 Location: santa cruz cali Posts: 118	where did you end up getting the spacers from? __________________ 1968 gmc 3/4 4x4 longbed. built 469 700r4 (needs a th400 REAL SOON!), 14bolt ff rear 73 3/4 dana 44 1970 chevelle all wheel disc, tubular rear control arms tall spindle swap up front matching #'s 350 work in Progress



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