For those that dont understand backspacing and offset

Issues · 09-05-2005, 09:26 PM

Would i need adapters for a 22x9.5 +18 with a 5.95 bs 265/35/22 for the front and 285/30/22 in the rear, or would that work just fine without adapters?

Kevin

nigglewiggle60 · 09-06-2005, 12:32 AM

22x9.5 Chrome 5 on 4.75 +20 mm 6" that is what I have on the rear and the tire is 265/35/22. on the front i have 20x8.5 Chrome 5 on 4.75 +14 mm 5.238 and its perfect with the 255/35/22. I put the 22 in the front, but with the 4/5 drop all i could do is drive straight. that should give you an idea.

Issues · 09-06-2005, 01:03 AM

Quote: Originally Posted by nigglewiggle60

22x9.5 Chrome 5 on 4.75 +20 mm 6" that is what I have on the rear and the tire is 265/35/22. on the front i have 20x8.5 Chrome 5 on 4.75 +14 mm 5.238 and its perfect with the 255/35/22. I put the 22 in the front, but with the 4/5 drop all i could do is drive straight. that should give you an idea.

Thanks i think im understanding the backspacing offset now.

Ya i am bagging my truck this winter, hopfully turning shouldn't be to bad.

myYellowDime02 · 09-08-2005, 11:52 PM

will one of you experts on the offset/backspacing tell me what specs i should order on 20's on a 02' Dime with a 4-6 drop?????? I have 18"-8.5" and they rub turnin every once in a while......i have never measured their offset or backspacing......

kyhombre · 09-11-2005, 11:27 PM

hey how much BS would i need to run 20x9" rims on the front and 22x9.5" rims on the back of a 2wd 2nd gen.???? thanks

edit: ok i see that ill need 6" of BS for the 22s but still how much for the 20x9"

partyboy3kgt · 10-04-2005, 07:28 PM

5x4.75 with offset 40

Won't work on our trucks, but what about with a wheel adapter? I can get these wheels for next to nothing, and I think im understanding offset, but I don't understand how wheel adapters can effect it.

I have a GMC Sonoma 2WD

***98layinframe*** · 10-05-2005, 08:40 AM

Quote: Originally Posted by partyboy3kgt

5x4.75 with offset 40

Won't work on our trucks, but what about with a wheel adapter? I can get these wheels for next to nothing, and I think im understanding offset, but I don't understand how wheel adapters can effect it.

I have a GMC Sonoma 2WD

yes the 5 x 4.75" bolt pattern is correct and will work fine, but no that offset of 40mm will not work. You would simply need a 1.5" thick adaptor to mount those wheels up.

Viperine · 10-05-2005, 06:39 PM

Here's my Q.....

I'm looking to put some Cragar 313's on (15x7f / 15x8r). The rear spacing on the 15x8's is listed at 3 7/8" and 4 1/2" on the 15x7's. What kind of issue is that going to cause? Mine is a 2wd and stock height for the moment.

Thanks,
Mike

***98layinframe*** · 10-06-2005, 08:52 AM

Quote: Originally Posted by Viperine

Here's my Q.....

I'm looking to put some Cragar 313's on (15x7f / 15x8r). The rear spacing on the 15x8's is listed at 3 7/8" and 4 1/2" on the 15x7's. What kind of issue is that going to cause? Mine is a 2wd and stock height for the moment.

Thanks,
Mike

well the 4 1/2" backspacing on the front 15 x 7's is gona work perfect. Will sit in there just like a factory wheel does. The back 15 x 8's are whats gona cause the problem. The wheels are wider AND have less backspacing... so that means they are gona stick out about 1 1/2" out past where the stock wheels sit now. Not sure if they are gona look right or not, but as long as the rim atleast sits flush with the top of the fender lip it should look ok. If you were buying these wheels new.... you would want those rear 15 x 8" rims to have a backspacing on 4.5" or 4.75" also.... same as the front

Viperine · 10-06-2005, 08:02 PM

Quote: Originally Posted by 98layinframe

well the 4 1/2" backspacing on the front 15 x 7's is gona work perfect. Will sit in there just like a factory wheel does. The back 15 x 8's are whats gona cause the problem. The wheels are wider AND have less backspacing... so that means they are gona stick out about 1 1/2" out past where the stock wheels sit now. Not sure if they are gona look right or not, but as long as the rim atleast sits flush with the top of the fender lip it should look ok. If you were buying these wheels new.... you would want those rear 15 x 8" rims to have a backspacing on 4.5" or 4.75" also.... same as the front

Thanks for the info....That is the only option for the rear in 15x8. I guess I'll suck it up and use the 15x7's in the front instead....That should work with the tires that I'm looking to put on (235/60 fr / 255/60 r)

Thanks again,
M

MoneyMike · 10-11-2005, 11:30 PM

20x10 with a 275/30/20?

does back spacing effect the "lip" of the rim? if not how is it possible to get the biggest "lip" on a rim?

xtreme5369 · 10-12-2005, 12:24 AM

...................

***98layinframe*** · 10-12-2005, 08:30 AM

Quote: Originally Posted by MoneyMike

20x10 with a 275/30/20?

does back spacing effect the "lip" of the rim? if not how is it possible to get the biggest "lip" on a rim?

yes backspacing does effect the lip of the rim. The problem is you cant just go and pick any backspacing you want and expect the rim to fit and tuck correctly on the truck. With a 10" wide rim your looking for a backspacing around 5" - 5.5" The thing is you cant run any smaller of a backspacing if you want the wheels to fit in a stock width s10 wheelwell, mainly because the less backspacing ya have, the more the wheel is gona stick out too or past the fenders.

The only way you could run a huge lip is have a custom set of 10" wide rims made for ya with a 3.75" backspacing to them. But now to get the wheels to fit on the truck you would need to get the rearend narrowed by almost 2" on both sides. Or unless your going for the dually look and mold a set of stepside bedsides onto a fleetside bed and then run a 10" or 12" wide rim with the normal backspacing of 5.5" and the rest would stick out farther from the truck... but still be under the dually sides..

MoneyMike · 10-12-2005, 08:37 AM

Quote: Originally Posted by 98layinframe

yes backspacing does effect the lip of the rim. The problem is you cant just go and pick any backspacing you want and expect the rim to fit and tuck correctly on the truck. With a 10" wide rim your looking for a backspacing around 5" - 5.5" The thing is you cant run any smaller of a backspacing if you want the wheels to fit in a stock width s10 wheelwell, mainly because the less backspacing ya have, the more the wheel is gona stick out too or past the fenders.

The only way you could run a huge lip is have a custom set of 10" wide rims made for ya with a 3.75" backspacing to them. But now to get the wheels to fit on the truck you would need to get the rearend narrowed by almost 2" on both sides. Or unless your going for the dually look and mold a set of stepside bedsides onto a fleetside bed and then run a 10" or 12" wide rim with the normal backspacing of 5.5" and the rest would stick out farther from the truck... but still be under the dually sides..

thanks.....

Twisted99s10 · 10-27-2005, 11:15 PM

ok, here is my problem. i dont want flashy chrome rims. id rather get something along the lines of a 5 spoke, light weight rim. the only problem is, i cant find any with the correct offset, or bolt pattern. im really love'n the 5zigen fn01r-c rims. the problem is, the largest bolt patern they have is a 5x114.3, which can be fixed with an adapter. but i want to space the wheels out so they fit about 1-1.5 inches farther out than where stock tires sit. the shalowest offset for those rims in an 18x7.5 is 35, and 30 for 18x8.5. if i got a 2 inch spacer would it put the wheels areound the location i am looking for?

***98layinframe*** · 10-28-2005, 08:27 AM

Quote: Originally Posted by Twisted99s10

ok, here is my problem. i dont want flashy chrome rims. id rather get something along the lines of a 5 spoke, light weight rim. the only problem is, i cant find any with the correct offset, or bolt pattern. im really love'n the 5zigen fn01r-c rims. the problem is, the largest bolt patern they have is a 5x114.3, which can be fixed with an adapter. but i want to space the wheels out so they fit about 1-1.5 inches farther out than where stock tires sit. the shalowest offset for those rims in an 18x7.5 is 35, and 30 for 18x8.5. if i got a 2 inch spacer would it put the wheels areound the location i am looking for?

yes it would, you could run a 2" - 2.5" thick adaptor. If you were to run the 35mm offset wheels at the stock location you would need a 1.25 - 1.5" adaptor. Now since you want the wheels to stick out farther, then obviously ya just need to add another 1" to that thickness to achieve your desired depth.

Twisted99s10 · 10-28-2005, 10:10 AM

ok, thanks alot.

enominus · 10-28-2005, 03:52 PM

ok, i have a 02 xtreme with 2/3 drop, let me get this straight..if i went with a 20x8.5 245/35/20 and an offset of 34 i would just need to use a 1" spacer right??

***98layinframe*** · 10-28-2005, 03:56 PM

yeah 1" would work just fine. 1 1/4" would be better though.

Baggd · 10-28-2005, 06:53 PM

Quote: Originally Posted by 98layinframe

yeah 1" would work just fine. 1 1/4" would be better though.

so do you work for a wheel shop or what?

f_tony_ · 10-28-2005, 07:13 PM

would 20x9 with a 15mm offset fit on my bagged 03 s-10 .

enominus · 10-29-2005, 02:03 AM

Quote: Originally Posted by enominus

ok, i have a 02 xtreme with 2/3 drop, let me get this straight..if i went with a 20x8.5 245/35/20 and an offset of 34 i would just need to use a 1" spacer right??

thanks for the info man, also would i be able to not run the spacer for a bit? is the spacer just there so i can have a better turning radius and it just pushes the wheel closer to the fender?

YELLOWMAN · 10-29-2005, 05:14 PM

what backspacing would you use on a 15x 10 and 16x10 wheel for a 2wd 1985 s10 that lowerd 5/5

***98layinframe*** · 10-31-2005, 09:06 AM

Quote: Originally Posted by Baggd2DaXtreeme

so do you work for a wheel shop or what?

nope... not at all, just understand it and enjoy helping others getting there wheels to fit on the truck. I hate seeing people buy wheels they cant use.

Quote: Originally Posted by f_tony_

would 20x9 with a 15mm offset fit on my bagged 03 s-10 .

yes it would, but the wheel is gona rub on the control arms for sure when you turn. You could either get longer wheel studs and run a 1/2" spacer to push the wheels out some, or ya could allways get a set of tubular control arms, they would help increase the clearense issues with rubbing.

Quote: Originally Posted by enominus

thanks for the info man, also would i be able to not run the spacer for a bit? is the spacer just there so i can have a better turning radius and it just pushes the wheel closer to the fender?

No i highly doubt your gona be able to run those wheels without a spacer. Thats over 1" that the wheels would sit in to far.... maybe clear going perfectly strait, but when you turn thats where the problems are gone happen. Probably rubb the tie rod end links, possibley hit the brake calipers, and also the wheel could hit the control arm or shock.

Quote: Originally Posted by YELLOWMAN

what backspacing would you use on a 15x 10 and 16x10 wheel for a 2wd 1985 s10 that lowerd 5/5

5" - 5 1/4" I hope your gona run a really low profile tire, its gona be hard to tuck those in the front fenders and still be able to turn at that low of a drop. It will be really close, make sure to choose a tire that is under 25" in height.

SLAMnoma95 · 11-01-2005, 08:11 PM

heres a silly question...is 5x120 and 5x4.75 close enough to work? ....i know that 5x120 = like 4.7249 " ....i just didnt know if maybe one was the exact metric measurement, and if one was the approx. english....who knows

lemme know please fellahs

***98layinframe*** · 11-02-2005, 08:21 AM

Quote: Originally Posted by SLAMnoma95

heres a silly question...is 5x120 and 5x4.75 close enough to work? ....i know that 5x120 = like 4.7249 " ....i just didnt know if maybe one was the exact metric measurement, and if one was the approx. english....who knows

lemme know please fellahs

5 x 120mm is metric bmw bolt pattern. The pattern is .65mm off from our trucks bolt pattern, so to be correct.. it is not the correct size.... but since its sooooo close, alot of guys have run wheels with this pattern and not had any troubles at all. The metric equivilant to our 5 x 4.75" equals out to be 5 x 120.65mm. So its prettty damn close.

***Dragginbody*** · 11-08-2005, 07:20 AM

damn man you do know your shit.

so 5.5 of backspacing is needed for a 10'' wide wheel to tuck... what offset is that?

***98layinframe*** · 11-08-2005, 08:12 AM

Quote: Originally Posted by Dragginbody

damn man you do know your shit.

so 5.5 of backspacing is needed for a 10'' wide wheel to tuck... what offset is that?

thats actually only about a 0 - 5mm offset. 5.5" of backspacing is about the most you can safely run on an s10 or blazer without chances of rubbing the back side of the rim on the frame during hard cornering.

Bdydrp02s10 · 11-08-2005, 06:06 PM

Quote: Originally Posted by 98layinframe

thats actually only about a 0 - 5mm offset. 5.5" of backspacing is about the most you can safely run on an s10 or blazer without chances of rubbing the back side of the rim on the frame during hard cornering.

Hey man, making sure this is the right wheel size and stuff. Anyhow I'm planning on getting the Intros Pentia in 20 x8.5. I think I need to get them with a 5 x 4.75 bolt pattern, and 4.75" of back spacing. I'm also looking for a good place to order these from. Plan on ordering sometime this week. Also I'm trying to find the biggest tire I can fit under the hood without major problems with a 3" bodydropped truck. I was thinking 245/35/20 but am not sure.

Thanks in advance for you're help.

David

09-05-2005, 09:26 PM	#151
Issues Registered User Age: 25 Join Date: Jun 2004 Posts: 58 Location: O'Fallon,Mo User is: OffLine	Re: For those that dont understand backspacing and offset Would i need adapters for a 22x9.5 +18 with a 5.95 bs 265/35/22 for the front and 285/30/22 in the rear, or would that work just fine without adapters? Kevin
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09-06-2005, 12:32 AM	#152
nigglewiggle60 Registered User Age: 24 Join Date: Jun 2003 Posts: 532 Location: Oakhurst, California User is: OffLine	Re: For those that dont understand backspacing and offset 22x9.5 Chrome 5 on 4.75 +20 mm 6" that is what I have on the rear and the tire is 265/35/22. on the front i have 20x8.5 Chrome 5 on 4.75 +14 mm 5.238 and its perfect with the 255/35/22. I put the 22 in the front, but with the 4/5 drop all i could do is drive straight. that should give you an idea.
	[Reply w/Quote]

09-06-2005, 01:03 AM	#153
Issues Registered User Age: 25 Join Date: Jun 2004 Posts: 58 Location: O'Fallon,Mo User is: OffLine	Re: For those that dont understand backspacing and offset Quote: Originally Posted by nigglewiggle60 22x9.5 Chrome 5 on 4.75 +20 mm 6" that is what I have on the rear and the tire is 265/35/22. on the front i have 20x8.5 Chrome 5 on 4.75 +14 mm 5.238 and its perfect with the 255/35/22. I put the 22 in the front, but with the 4/5 drop all i could do is drive straight. that should give you an idea. Thanks i think im understanding the backspacing offset now. Ya i am bagging my truck this winter, hopfully turning shouldn't be to bad.
	[Reply w/Quote]

09-08-2005, 11:52 PM	#154
myYellowDime02 Yellow Dime 02 Age: 25 Join Date: Sep 2005 Posts: 20 Location: ATL User is: OffLine	Re: For those that dont understand backspacing and offset will one of you experts on the offset/backspacing tell me what specs i should order on 20's on a 02' Dime with a 4-6 drop?????? I have 18"-8.5" and they rub turnin every once in a while......i have never measured their offset or backspacing......
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09-11-2005, 11:27 PM	#155
kyhombre dont scare her, shock 'er Age: 21 Join Date: Jul 2004 Posts: 570 Location: KENTUCKY User is: OffLine	Re: For those that dont understand backspacing and offset hey how much BS would i need to run 20x9" rims on the front and 22x9.5" rims on the back of a 2wd 2nd gen.???? thanks edit: ok i see that ill need 6" of BS for the 22s but still how much for the 20x9" Last edited by kyhombre : 09-11-2005 at 11:29 PM.
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10-04-2005, 07:28 PM	#156
partyboy3kgt Registered User Join Date: Mar 2005 Posts: 74 Location: User is: OffLine	Re: For those that dont understand backspacing and offset 5x4.75 with offset 40 Won't work on our trucks, but what about with a wheel adapter? I can get these wheels for next to nothing, and I think im understanding offset, but I don't understand how wheel adapters can effect it. I have a GMC Sonoma 2WD Last edited by partyboy3kgt : 10-04-2005 at 07:31 PM.
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10-05-2005, 06:39 PM	#158
Viperine Registered User Age: 38 Join Date: Jul 2002 Posts: 38 Location: VA Beach User is: OffLine	Re: For those that dont understand backspacing and offset Here's my Q..... I'm looking to put some Cragar 313's on (15x7f / 15x8r). The rear spacing on the 15x8's is listed at 3 7/8" and 4 1/2" on the 15x7's. What kind of issue is that going to cause? Mine is a 2wd and stock height for the moment. Thanks, Mike
	[Reply w/Quote]

10-06-2005, 08:02 PM	#160
Viperine Registered User Age: 38 Join Date: Jul 2002 Posts: 38 Location: VA Beach User is: OffLine	Re: For those that dont understand backspacing and offset Quote: Originally Posted by 98layinframe well the 4 1/2" backspacing on the front 15 x 7's is gona work perfect. Will sit in there just like a factory wheel does. The back 15 x 8's are whats gona cause the problem. The wheels are wider AND have less backspacing... so that means they are gona stick out about 1 1/2" out past where the stock wheels sit now. Not sure if they are gona look right or not, but as long as the rim atleast sits flush with the top of the fender lip it should look ok. If you were buying these wheels new.... you would want those rear 15 x 8" rims to have a backspacing on 4.5" or 4.75" also.... same as the front Thanks for the info....That is the only option for the rear in 15x8. I guess I'll suck it up and use the 15x7's in the front instead....That should work with the tires that I'm looking to put on (235/60 fr / 255/60 r) Thanks again, M
	[Reply w/Quote]

10-11-2005, 11:30 PM	#161
MoneyMike Beer, Bait and Ammo Age: 23 Join Date: Nov 2002 Posts: 6,197 Location: Baytown, Texas User is: OffLine	Re: For those that dont understand backspacing and offset 20x10 with a 275/30/20? does back spacing effect the "lip" of the rim? if not how is it possible to get the biggest "lip" on a rim? Last edited by MoneyMike : 10-11-2005 at 11:33 PM.
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10-12-2005, 12:24 AM	#162
xtreme5369 Registered User Age: 23 Join Date: May 2004 Posts: 189 Location: Back in San Antonio,Tx, but Im moving to Colorado User is: OffLine	Re: For those that dont understand backspacing and offset ...................
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10-12-2005, 08:37 AM	#164
MoneyMike Beer, Bait and Ammo Age: 23 Join Date: Nov 2002 Posts: 6,197 Location: Baytown, Texas User is: OffLine	Re: For those that dont understand backspacing and offset Quote: Originally Posted by 98layinframe yes backspacing does effect the lip of the rim. The problem is you cant just go and pick any backspacing you want and expect the rim to fit and tuck correctly on the truck. With a 10" wide rim your looking for a backspacing around 5" - 5.5" The thing is you cant run any smaller of a backspacing if you want the wheels to fit in a stock width s10 wheelwell, mainly because the less backspacing ya have, the more the wheel is gona stick out too or past the fenders. The only way you could run a huge lip is have a custom set of 10" wide rims made for ya with a 3.75" backspacing to them. But now to get the wheels to fit on the truck you would need to get the rearend narrowed by almost 2" on both sides. Or unless your going for the dually look and mold a set of stepside bedsides onto a fleetside bed and then run a 10" or 12" wide rim with the normal backspacing of 5.5" and the rest would stick out farther from the truck... but still be under the dually sides.. thanks.....
	[Reply w/Quote]

10-27-2005, 11:15 PM	#165
Twisted99s10 Wide N' Low Age: 22 Join Date: Jun 2005 Posts: 333 Location: Port Crane NY User is: OffLine	Re: For those that dont understand backspacing and offset ok, here is my problem. i dont want flashy chrome rims. id rather get something along the lines of a 5 spoke, light weight rim. the only problem is, i cant find any with the correct offset, or bolt pattern. im really love'n the 5zigen fn01r-c rims. the problem is, the largest bolt patern they have is a 5x114.3, which can be fixed with an adapter. but i want to space the wheels out so they fit about 1-1.5 inches farther out than where stock tires sit. the shalowest offset for those rims in an 18x7.5 is 35, and 30 for 18x8.5. if i got a 2 inch spacer would it put the wheels areound the location i am looking for?
	[Reply w/Quote]

10-28-2005, 10:10 AM	#167
Twisted99s10 Wide N' Low Age: 22 Join Date: Jun 2005 Posts: 333 Location: Port Crane NY User is: OffLine	Re: For those that dont understand backspacing and offset ok, thanks alot.
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10-28-2005, 03:52 PM	#168
enominus Not Banned Age: 20 Join Date: Jan 2005 Posts: 3,986 Location: chandler AZ User is: OffLine	Re: For those that dont understand backspacing and offset ok, i have a 02 xtreme with 2/3 drop, let me get this straight..if i went with a 20x8.5 245/35/20 and an offset of 34 i would just need to use a 1" spacer right??
	[Reply w/Quote]

10-28-2005, 06:53 PM	#170
Baggd un banned Age: 26 Join Date: Oct 2003 Posts: 9,224 Location: north jersey User is: OffLine	Re: For those that dont understand backspacing and offset Quote: Originally Posted by 98layinframe yeah 1" would work just fine. 1 1/4" would be better though. so do you work for a wheel shop or what?
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10-28-2005, 07:13 PM	#171
f_tony_ Registered User Age: 23 Join Date: Mar 2004 Posts: 77 Location: bakersfiled, CA User is: OffLine	Re: For those that dont understand backspacing and offset would 20x9 with a 15mm offset fit on my bagged 03 s-10 .
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10-29-2005, 02:03 AM	#172
enominus Not Banned Age: 20 Join Date: Jan 2005 Posts: 3,986 Location: chandler AZ User is: OffLine	Re: For those that dont understand backspacing and offset Quote: Originally Posted by enominus ok, i have a 02 xtreme with 2/3 drop, let me get this straight..if i went with a 20x8.5 245/35/20 and an offset of 34 i would just need to use a 1" spacer right?? thanks for the info man, also would i be able to not run the spacer for a bit? is the spacer just there so i can have a better turning radius and it just pushes the wheel closer to the fender?
	[Reply w/Quote]

10-29-2005, 05:14 PM	#173
YELLOWMAN Registered User Age: 33 Join Date: Jun 2003 Posts: 357 Location: jersey User is: OffLine	Re: For those that dont understand backspacing and offset what backspacing would you use on a 15x 10 and 16x10 wheel for a 2wd 1985 s10 that lowerd 5/5 Last edited by YELLOWMAN : 10-29-2005 at 05:16 PM.
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11-01-2005, 08:11 PM	#175
SLAMnoma95 SK= Midwest's Elite Age: 21 Join Date: Feb 2003 Posts: 4,940 Location: Detroit User is: OffLine	Re: For those that dont understand backspacing and offset heres a silly question...is 5x120 and 5x4.75 close enough to work? ....i know that 5x120 = like 4.7249 " ....i just didnt know if maybe one was the exact metric measurement, and if one was the approx. english....who knows lemme know please fellahs
	[Reply w/Quote]

11-08-2005, 06:06 PM	#179
Bdydrp02s10 Anybody got 20's? Age: 28 Join Date: Sep 2003 Posts: 5,647 Location: Columbia S.C. User is: OffLine	Re: For those that dont understand backspacing and offset Quote: Originally Posted by 98layinframe thats actually only about a 0 - 5mm offset. 5.5" of backspacing is about the most you can safely run on an s10 or blazer without chances of rubbing the back side of the rim on the frame during hard cornering. Hey man, making sure this is the right wheel size and stuff. Anyhow I'm planning on getting the Intros Pentia in 20 x8.5. I think I need to get them with a 5 x 4.75 bolt pattern, and 4.75" of back spacing. I'm also looking for a good place to order these from. Plan on ordering sometime this week. Also I'm trying to find the biggest tire I can fit under the hood without major problems with a 3" bodydropped truck. I was thinking 245/35/20 but am not sure. Thanks in advance for you're help. David
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