For those that dont understand backspacing and offset

***98layinframe*** · 02-13-2006, 10:05 AM

Quote: Originally Posted by LowRidinBlazer

Can someone help me.... I'm looking to get 18s. The Kruz K08 to be exact, they are 18x7.5, I'm gonna run a 215 up front and 235 in back. Will they fit fine or how will I know? Do i need some sort of spacer or something? Thanks

can you post a link to some info on these wheels? I need to know the backspacing before its possible to know if there gona fit correctly. As for the tire, yes a 215 35 18 will work up front but out back id run a 225 40 18 instead.

Quote: Originally Posted by JayZ400

Ok I tried to figure it out but just confused myself more. I got a set of 15x7 Eagle Alloys rims that fit a Dodge Dakota (bolt pattern 6 on 4.5) for free. They have a 4" back spacing and a 2mm offset. I was thinking about putting them on my truck (2001 Sonoma with Fabtech 3 1/2" lift spinals) they will be wrapped with 31" BFGoodrich Mudders. I know I need adapters but what thickness should I get or will these even work with my truck. If they will what are some web sites were I can get them. Thanks for the info.

Jay

your gona need a 1" thick spacer in order to change the bolt pattern over to the correct one for those dodge wheels. Now the only bad thing about this is that since you do need that spacer its obviously going to push the wheels out 1" farther on each side... which may or may not be a bad thing for ya since lifted truck do look better with the wheels sticking out a little.

LowRidinBlazer · 02-13-2006, 01:14 PM

[quote=98layinframe]can you post a link to some info on these wheels? I need to know the backspacing before its possible to know if there gona fit correctly. As for the tire, yes a 215 35 18 will work up front but out back id run a 225 40 18 instead.

Heres what I found on the Kruz website....

http://www.kruzwheels.com/product/pr...tail.asp?idx=8

Let me know if that works.... was gonna run 215/40/18 Front 235/40/18... that was the plan... let me know if it'll work right and lay with fender wells in.

***98layinframe*** · 02-13-2006, 01:26 PM

well assuming that Et on there sight means the offset, then yes those will work just fine.

LowRidinBlazer · 02-13-2006, 03:08 PM

Quote: Originally Posted by 98layinframe

well assuming that Et on there sight means the offset, then yes those will work just fine.

Cool, whats the skinniest tire without it looking gay on a 7.5" rim.... Kruz is showing its 8" but all the websites to buy is 7.5"... can i go skinnier than a 215 or will that work good? I figured 235 in back is what i had now, i just have rubbing issues up front, i know its not ALL gonna go away but i want as little as possible.

***98layinframe*** · 02-13-2006, 03:22 PM

no i wouldnt go any skinnier or smaller then a 215 35 18... hell thats allready a rubber band.

CraigDavid · 02-28-2006, 02:37 PM

Quote: Originally Posted by IOWABOB

I had 15x8 with 4" backspace on mine, it worked fine_ (96 S10)

Would a 15x8 wheel with a 4" bs and a -12.00mm offset work with it? I know its not much of a difference but I just really don't understand this. I'm just another stupid redneck...

***98layinframe*** · 02-28-2006, 06:27 PM

Quote: Originally Posted by CraigDavid

Would a 15x8 wheel with a 4" bs and a -12.00mm offset work with it? I know its not much of a difference but I just really don't understand this. I'm just another stupid redneck...

depends on what your putting them on. With a negative offset that means the mounting flange is towards the back side of the wheel more. SO that means the wheel is gona stick out farther towards the fender lip. The wheel is not gona tuck inside the fender edge very well once a tire is mounted, Not sure what type of s10 this is going on, but to sum it up...

Stock height 2wd - yes will work fine.
lowered 2wd - no probably not. If its a 1/2" or a 2/3" drop ya might get away with them
lifted 2wd - yes will work fine, thats actually more like what ya want.

ACE2790 · 02-28-2006, 06:32 PM

I could read this entire thread and still not understand BS and offset.

bagged91sonoma · 03-04-2006, 03:49 AM

ok my truck is bagged and i am wanting to get 20's. i don't know what kind of bs and offset to get. i want to make sure i get the right stuff so the wheels tuck wihtout interference. If somebody can let me now what the offset and bs i should get so i can start rollen on dubs when i get back from iraq.

LaserBugg · 03-06-2006, 07:41 PM

Ok, 22x9.5 in the front with a offset of +20mm, will it fit or rub on anythingand clear the fender? I am body dropped with BYC control arms... I have searched and didn't find an answer....
Thanks,
Derrick

ESBaged · 03-06-2006, 09:35 PM

Ive got some 17x8s with 5.25" backspacing.
the tire thread says 4.5" backspacing is needed for a drop
and 4" for air ride.

I will be on air so I figure that I need a 1.25" addaptor for these rims to get them to be at the 4" backspacing mark.

But 4.5" inches of backspacing seems like the better way to get the rim pulled in a little more for fender clerance. THis means I would need a .75" addaptor. Im im getting this right? DO thay make an addaptor that thin?

The rims have a 5x100 pattern.

ESBaged · 03-06-2006, 10:00 PM

120mm to 100mm x 1.25" is thinest ive found so far. THats from shAIM. Who else sells these things?

dimebag-1966-2004 · 03-09-2006, 02:31 PM

i just ordered some verde wheels they are 18x8.5 with a +12 offset and 4.75 bolt pattern they told me at the store it will not rub at all my question is if i did a 2/3 spindel drop will i rub in the front i have 245/40 /18 tires i tried to find it but there is so many questions its hard to get answer with my offset . i had a set of boss 18x9 with a 15 offset and they hit so i returned them becouse of that i hope i dont have the same problem with the 8.5 please help before i pay for the rest of the rims

Boozehound · 03-13-2006, 01:39 PM

I read the whole thread but still a little confused. Im lookin at buyin some 22x8.5's My truk is bagged and I plan on stock floorin it. What backspacing/offset do I order them in? Tires Im gonna get are 255/30/22

***98layinframe*** · 03-13-2006, 02:11 PM

Quote: Originally Posted by ESBaged

120mm to 100mm x 1.25" is thinest ive found so far. THats from shAIM. Who else sells these things?

If your gona buy spacers, make sure to get the correct ones. you need 4.75"x 5 not 120mm x 5.

here, there 1" thick and 48 bucks each.
http://www.adaptitusa.com/index.asp?...PROD&ProdID=74

Quote: Originally Posted by dimebag-1966-2004

i just ordered some verde wheels they are 18x8.5 with a +12 offset and 4.75 bolt pattern they told me at the store it will not rub at all my question is if i did a 2/3 spindel drop will i rub in the front i have 245/40 /18 tires i tried to find it but there is so many questions its hard to get answer with my offset . i had a set of boss 18x9 with a 15 offset and they hit so i returned them becouse of that i hope i dont have the same problem with the 8.5 please help before i pay for the rest of the rims

No you should be fine with the those rims. My 20's are 20 x 8.5 with a 15mm offset and they still work fine. If ya wanted to, you could run a 1/4" spacer to push the wheels out to a 7mm offset.

Quote: Originally Posted by Dragn22s

I read the whole thread but still a little confused. Im lookin at buyin some 22x8.5's My truk is bagged and I plan on stock floorin it. What backspacing/offset do I order them in? Tires Im gonna get are 255/30/22

Id order them with a 5 1/4" backspacing or a 15mm offset. Your gona want a little more then the usual since the truck is going to be body dropped. That will give you better clearense up front to turn a wee bit more.

dimebag-1966-2004 · 03-14-2006, 10:56 AM

thanks so much for your help 98layinframe

LaserBugg · 03-14-2006, 01:39 PM

Ok, 22x9.5 in the front with a offset of +20mm, will it fit or rub on anythingand clear the fender? I am body dropped with BYC control arms... I have searched and didn't find an answer....
Thanks,
Derrick

***98layinframe*** · 03-14-2006, 01:45 PM

Quote: Originally Posted by LaserBugg

Ok, 22x9.5 in the front with a offset of +20mm, will it fit or rub on anythingand clear the fender? I am body dropped with BYC control arms... I have searched and didn't find an answer....
Thanks,
Derrick

I would have to say that is over pushing it man. Do you have the older style barnyard arms that pull the wheels in some? or the newer fixed problem arms? either way that wide of a wheel with that much backspacing to them is gona pull the tires away from the fenders just fine.... but you now might have problems hitting even a small 7" brake booster when laid out due to the camber.

Its hard to say, but as long as you dont mind turning like a mac truck, yeah the wheels would work.

Is there any chance you could get that same wheel in a 8.5" width??

ESBaged · 03-16-2006, 11:52 PM

Quote: Originally Posted by 98layinframe

If your gona buy spacers, make sure to get the correct ones. you need 4.75"x 5 not 120mm x 5.

here, there 1" thick and 48 bucks each.
http://www.adaptitusa.com/index.asp?...PROD&ProdID=74

Hay man. I think I love you. In a total car guy, not gay, kinda way.
I had figured out that The 120mm was the wrong way to go but I was getting pissed and gave up searching.

Thanks for the link I'll be ordering a set asap.
Im so happy now that I dont have to get rid of my old rims that I love so much.

YELLOWMAN · 03-19-2006, 07:17 PM

My brother just gave a set of chrom rim , but here the problem there off a 1997 vw vr6 golf . Its a front wheel drive car the bolt pattern is 5x 100 . I would like how thick of a adptor do I need to make theses rim fit a 1985 s10 2 wheel drive pickup.

ESBaged · 03-19-2006, 08:53 PM

I know that the patern of that Golf and my old cavy are the same. Ive seen a lot of people interchange wheels from the two. Ive seen a set of rims with exact same demensions as mine go onto a Golf and fit perfect.

Im putting my rims from my Cavalier onto my S10. I just orderd a set of 1" addaptors from the link above that 98layinframe gave me. I will post my results as soon as I get them on.

***98layinframe*** · 03-20-2006, 07:19 AM

Quote: Originally Posted by YELLOWMAN

My brother just gave a set of chrom rim , but here the problem there off a 1997 vw vr6 golf . Its a front wheel drive car the bolt pattern is 5x 100 . I would like how thick of a adptor do I need to make theses rim fit a 1985 s10 2 wheel drive pickup.

1.5" thick and remember the trucks pattern is a 4.75" x 5 that the adaptor needs to convert it over to.

YELLOWMAN · 03-21-2006, 09:10 PM

I want to make sure the 5 X 4.75 to 5 X 100 and 1.5 " thick Wheel Adapter is what I need to make these wheels work.

slammed isuzu · 03-23-2006, 01:03 AM

Quote: Originally Posted by 98layinframe

EDIT! I was looking at my original post, and now realized why it is confusing some people, the offset desired will change for the width of the rim. I posted a 0-4mm offest... I should of posted this

7" --- 0 - 4mm
8" --- 4 - 10mm
8.5" --- 5 - 15mm

now these are just approximations, the wheels you chose can vary from these measurements a little and still work.

what if a 8.5" wheel had a backspace of +18mm?? would this work do you think??? the backspace is 5.25" so I think that should be fine, but offset is a little higher.....

thanks alot.

***98layinframe*** · 03-23-2006, 08:41 AM

Quote: Originally Posted by slammed isuzu

what if a 8.5" wheel had a backspace of +18mm?? would this work do you think??? the backspace is 5.25" so I think that should be fine, but offset is a little higher.....

thanks alot.

yeah they should work since your only 3mm over. If you were to have any troubles with the wheels clearing up front when ya turn, you could allways add a 1/4" spacer to push the wheel out a little. In the rear, those will clear just fine.

slammed isuzu · 03-23-2006, 11:08 AM

Quote: Originally Posted by 98layinframe

yeah they should work since your only 3mm over. If you were to have any troubles with the wheels clearing up front when ya turn, you could allways add a 1/4" spacer to push the wheel out a little. In the rear, those will clear just fine.

yeah, the wheels I was looking come with 1/4" spacers. That would take care of it then huh?? Cool.

What are some good places to buy wheels and tires for a decent price? Been lookin on ebay, havent found too many yet though.
Checked out tirerack.com, and they dont have shit for a selection on our trucks.....

Thanks alot man.

sjavio · 03-25-2006, 04:47 PM

i am looking at getting my wheels but still dont quite understand all this backspacing, offset stuff......im wanting 18X8 in the front and 19X8 in the back....i have an 01 sonoma stepside.....what offset, backspacing, and size tires would i need....right now its at stock hieght, but will get a 3/4 drop here pretty soon....thanxs

blk_blazer · 03-25-2006, 06:24 PM

I'm ready to order my RVM 330's, they are 18x7.5. they also have a +38 backspace. will these fit?

shortfreerider · 03-26-2006, 01:15 AM

does all of this math just to find out if the wheels wont rub the wheel wels?

02-13-2006, 01:14 PM	#252
LowRidinBlazer Sideways S10 Age: 23 Join Date: Oct 2005 Posts: 173 Location: Maple Shade, NJ User is: OffLine	Re: For those that dont understand backspacing and offset [quote=98layinframe]can you post a link to some info on these wheels? I need to know the backspacing before its possible to know if there gona fit correctly. As for the tire, yes a 215 35 18 will work up front but out back id run a 225 40 18 instead. Heres what I found on the Kruz website.... http://www.kruzwheels.com/product/pr...tail.asp?idx=8 Let me know if that works.... was gonna run 215/40/18 Front 235/40/18... that was the plan... let me know if it'll work right and lay with fender wells in.
	[Reply w/Quote]

02-13-2006, 03:08 PM	#254
LowRidinBlazer Sideways S10 Age: 23 Join Date: Oct 2005 Posts: 173 Location: Maple Shade, NJ User is: OffLine	Re: For those that dont understand backspacing and offset Quote: Originally Posted by 98layinframe well assuming that Et on there sight means the offset, then yes those will work just fine. Cool, whats the skinniest tire without it looking gay on a 7.5" rim.... Kruz is showing its 8" but all the websites to buy is 7.5"... can i go skinnier than a 215 or will that work good? I figured 235 in back is what i had now, i just have rubbing issues up front, i know its not ALL gonna go away but i want as little as possible.
	[Reply w/Quote]

02-28-2006, 02:37 PM	#256
CraigDavid not low enough Age: 22 Join Date: Feb 2006 Posts: 1,150 Location: User is: OffLine	Re: For those that dont understand backspacing and offset Quote: Originally Posted by IOWABOB I had 15x8 with 4" backspace on mine, it worked fine_ (96 S10) Would a 15x8 wheel with a 4" bs and a -12.00mm offset work with it? I know its not much of a difference but I just really don't understand this. I'm just another stupid redneck...
	[Reply w/Quote]

02-28-2006, 06:32 PM	#258
ACE2790 Photoshop Fiend Age: 20 Join Date: Jul 2004 Posts: 8,150 Location: Mid TN User is: OffLine	Re: For those that dont understand backspacing and offset I could read this entire thread and still not understand BS and offset.
	[Reply w/Quote]

03-04-2006, 03:49 AM	#259
bagged91sonoma Dragged Daily Age: 32 Join Date: Jun 2005 Posts: 32 Location: Texas User is: OffLine	Re: For those that dont understand backspacing and offset ok my truck is bagged and i am wanting to get 20's. i don't know what kind of bs and offset to get. i want to make sure i get the right stuff so the wheels tuck wihtout interference. If somebody can let me now what the offset and bs i should get so i can start rollen on dubs when i get back from iraq.
	[Reply w/Quote]


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03-06-2006, 07:41 PM	#260
LaserBugg Registered User Age: 24 Join Date: Apr 2003 Posts: 22 Location: User is: OffLine	Re: For those that dont understand backspacing and offset Ok, 22x9.5 in the front with a offset of +20mm, will it fit or rub on anythingand clear the fender? I am body dropped with BYC control arms... I have searched and didn't find an answer.... Thanks, Derrick
	[Reply w/Quote]

03-06-2006, 09:35 PM	#261
ESBaged Registered User Age: 30 Join Date: Jul 2005 Posts: 313 Location: User is: OffLine	Re: For those that dont understand backspacing and offset Ive got some 17x8s with 5.25" backspacing. the tire thread says 4.5" backspacing is needed for a drop and 4" for air ride. I will be on air so I figure that I need a 1.25" addaptor for these rims to get them to be at the 4" backspacing mark. But 4.5" inches of backspacing seems like the better way to get the rim pulled in a little more for fender clerance. THis means I would need a .75" addaptor. Im im getting this right? DO thay make an addaptor that thin? The rims have a 5x100 pattern.
	[Reply w/Quote]

03-06-2006, 10:00 PM	#262
ESBaged Registered User Age: 30 Join Date: Jul 2005 Posts: 313 Location: User is: OffLine	Re: For those that dont understand backspacing and offset 120mm to 100mm x 1.25" is thinest ive found so far. THats from shAIM. Who else sells these things?
	[Reply w/Quote]

03-09-2006, 02:31 PM	#263
dimebag-1966-2004 Registered User Age: 40 Join Date: Nov 2005 Posts: 16 Location: User is: OffLine	Re: For those that dont understand backspacing and offset i just ordered some verde wheels they are 18x8.5 with a +12 offset and 4.75 bolt pattern they told me at the store it will not rub at all my question is if i did a 2/3 spindel drop will i rub in the front i have 245/40 /18 tires i tried to find it but there is so many questions its hard to get answer with my offset . i had a set of boss 18x9 with a 15 offset and they hit so i returned them becouse of that i hope i dont have the same problem with the 8.5 please help before i pay for the rest of the rims
	[Reply w/Quote]

03-13-2006, 01:39 PM	#264
Boozehound Its my beer ! Age: 29 Join Date: Dec 2002 Posts: 75 Location: Tx User is: OffLine	Re: For those that dont understand backspacing and offset I read the whole thread but still a little confused. Im lookin at buyin some 22x8.5's My truk is bagged and I plan on stock floorin it. What backspacing/offset do I order them in? Tires Im gonna get are 255/30/22
	[Reply w/Quote]

03-14-2006, 10:56 AM	#266
dimebag-1966-2004 Registered User Age: 40 Join Date: Nov 2005 Posts: 16 Location: User is: OffLine	Re: For those that dont understand backspacing and offset thanks so much for your help 98layinframe
	[Reply w/Quote]

03-14-2006, 01:39 PM	#267
LaserBugg Registered User Age: 24 Join Date: Apr 2003 Posts: 22 Location: User is: OffLine	Re: For those that dont understand backspacing and offset Ok, 22x9.5 in the front with a offset of +20mm, will it fit or rub on anythingand clear the fender? I am body dropped with BYC control arms... I have searched and didn't find an answer.... Thanks, Derrick
	[Reply w/Quote]

03-16-2006, 11:52 PM	#269
ESBaged Registered User Age: 30 Join Date: Jul 2005 Posts: 313 Location: User is: OffLine	Re: For those that dont understand backspacing and offset Quote: Originally Posted by 98layinframe If your gona buy spacers, make sure to get the correct ones. you need 4.75"x 5 not 120mm x 5. here, there 1" thick and 48 bucks each. http://www.adaptitusa.com/index.asp?...PROD&ProdID=74 Hay man. I think I love you. In a total car guy, not gay, kinda way. I had figured out that The 120mm was the wrong way to go but I was getting pissed and gave up searching. Thanks for the link I'll be ordering a set asap. Im so happy now that I dont have to get rid of my old rims that I love so much.
	[Reply w/Quote]

03-19-2006, 07:17 PM	#270
YELLOWMAN Registered User Age: 33 Join Date: Jun 2003 Posts: 368 Location: jersey User is: OffLine	Re: For those that dont understand backspacing and offset My brother just gave a set of chrom rim , but here the problem there off a 1997 vw vr6 golf . Its a front wheel drive car the bolt pattern is 5x 100 . I would like how thick of a adptor do I need to make theses rim fit a 1985 s10 2 wheel drive pickup.
	[Reply w/Quote]

03-19-2006, 08:53 PM	#271
ESBaged Registered User Age: 30 Join Date: Jul 2005 Posts: 313 Location: User is: OffLine	Re: For those that dont understand backspacing and offset I know that the patern of that Golf and my old cavy are the same. Ive seen a lot of people interchange wheels from the two. Ive seen a set of rims with exact same demensions as mine go onto a Golf and fit perfect. Im putting my rims from my Cavalier onto my S10. I just orderd a set of 1" addaptors from the link above that 98layinframe gave me. I will post my results as soon as I get them on. Last edited by ESBaged : 03-19-2006 at 08:55 PM.
	[Reply w/Quote]

03-21-2006, 09:10 PM	#273
YELLOWMAN Registered User Age: 33 Join Date: Jun 2003 Posts: 368 Location: jersey User is: OffLine	Re: For those that dont understand backspacing and offset I want to make sure the 5 X 4.75 to 5 X 100 and 1.5 " thick Wheel Adapter is what I need to make these wheels work. Last edited by YELLOWMAN : 03-21-2006 at 09:11 PM.
	[Reply w/Quote]

03-23-2006, 01:03 AM	#274
slammed isuzu Isuzu= s10 w/face lift Age: 25 Join Date: Feb 2003 Posts: 6,135 Location: Iowa User is: OffLine	Re: For those that dont understand backspacing and offset Quote: Originally Posted by 98layinframe EDIT! I was looking at my original post, and now realized why it is confusing some people, the offset desired will change for the width of the rim. I posted a 0-4mm offest... I should of posted this 7" --- 0 - 4mm 8" --- 4 - 10mm 8.5" --- 5 - 15mm now these are just approximations, the wheels you chose can vary from these measurements a little and still work. what if a 8.5" wheel had a backspace of +18mm?? would this work do you think??? the backspace is 5.25" so I think that should be fine, but offset is a little higher..... thanks alot.
	[Reply w/Quote]

03-23-2006, 11:08 AM	#276
slammed isuzu Isuzu= s10 w/face lift Age: 25 Join Date: Feb 2003 Posts: 6,135 Location: Iowa User is: OffLine	Re: For those that dont understand backspacing and offset Quote: Originally Posted by 98layinframe yeah they should work since your only 3mm over. If you were to have any troubles with the wheels clearing up front when ya turn, you could allways add a 1/4" spacer to push the wheel out a little. In the rear, those will clear just fine. yeah, the wheels I was looking come with 1/4" spacers. That would take care of it then huh?? Cool. What are some good places to buy wheels and tires for a decent price? Been lookin on ebay, havent found too many yet though. Checked out tirerack.com, and they dont have shit for a selection on our trucks..... Thanks alot man.
	[Reply w/Quote]

03-25-2006, 04:47 PM	#277
sjavio DFW Age: 23 Join Date: May 2004 Posts: 20 Location: Garland TX User is: OffLine	Re: For those that dont understand backspacing and offset i am looking at getting my wheels but still dont quite understand all this backspacing, offset stuff......im wanting 18X8 in the front and 19X8 in the back....i have an 01 sonoma stepside.....what offset, backspacing, and size tires would i need....right now its at stock hieght, but will get a 3/4 drop here pretty soon....thanxs
	[Reply w/Quote]

03-25-2006, 06:24 PM	#278
blk_blazer Blk_blazer00 Join Date: Sep 2005 Posts: 602 Location: Orange Park/Tallahassee FL User is: OffLine	Re: For those that dont understand backspacing and offset I'm ready to order my RVM 330's, they are 18x7.5. they also have a +38 backspace. will these fit?
	[Reply w/Quote]

03-26-2006, 01:15 AM	#279
shortfreerider Registered User Join Date: Mar 2006 Posts: 56 Location: User is: OffLine	Re: For those that dont understand backspacing and offset does all of this math just to find out if the wheels wont rub the wheel wels?
	[Reply w/Quote]

03-26-2006, 06:57 PM	#280
slammed isuzu Isuzu= s10 w/face lift Age: 25 Join Date: Feb 2003 Posts: 6,135 Location: Iowa User is: OffLine