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Guest Message by DevFuse
 

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offset you guys are running on 15" rims..


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23 replies to this topic

#1 monstaru

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Posted 29 November 2004 - 03:18 AM

i looked around and have found anything from 4.5 inch offset to 3.5 inch offset.the toyota steelies i want to use i believe are 3.5 or 3.75.am i correct in thinking that i will be able to run a 7 or 8 inch wide rim with minimal problems...this would be with a 27 to 29 inch tire...i want to be able to still get my full flex capabilities with no rubbing whatsoever.i am willing to trim and bang.just want to clarify on the offset....

#2 MorganM

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Posted 29 November 2004 - 09:22 AM

I never really measure offset; just backspacing. The 15" pugs I run have about 5" of backspacing limiting my tire width to 9.5" before I rub on the struts lower spring seat. With a Toyota rim that has 3.5" of backspacing you have more room for wider tires. The width of the rim doesnt mater so much as the backspacing. The height of the tire isnt as important as the width here either.

I would run those Toyota rims with 3.5" of backspacing you found if you can get a full set. They are super easy to drill out. I just used an old brake drum/hub left over from doing a rear disc swap. Hammerd out 2 oppoiste, opposing studs, bolted the hub to the toyota rim, and used the hub as a jig to drill the holes. Took all of about 10 minutes to do one rim.

Here is a pic of a finished one. We bolted it onto Archemitis hatchback here. Also note thats a 235/75/R15 (28.9"x8.5") tire on an un-lifted EA81 sitting on its own weight. :brow:

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#3 4RnrRick

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Posted 29 November 2004 - 12:30 PM

The stock toyota IFS 15x6 steelies that I'm planning on running have 4.75 of BackSpacing just for reference. as for actual fitment I haven't gotten that far.......

#4 MorganM

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Posted 29 November 2004 - 01:19 PM

The stock toyota IFS 15x6 steelies that I'm planning on running have 4.75 of BackSpacing just for reference. as for actual fitment I haven't gotten that far.......


What Toyota rims have the LEAST amount of backspacing? That's what I want :grin:

#5 VaporTrail

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Posted 29 November 2004 - 01:44 PM

What Toyota rims have the LEAST amount of backspacing? That's what I want :grin:


these Chevy 15" wheels had about 3.5" of backspacing.... maybe 3.75"

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#6 MorganM

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Posted 29 November 2004 - 03:01 PM

these Chevy 15" wheels had about 3.5" of backspacing.... maybe 3.75"


The problem is I need to know what these (chevy, toyota, and fullsize jeep) rims come from. Just 'a chevy 15" rim' or 'a toyota 15" rim' do me little good out there in the junkyard. What year/make/models should I be looking at?

Thanks!

#7 VaporTrail

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Posted 29 November 2004 - 04:26 PM

The problem is I need to know what these (chevy, toyota, and fullsize jeep) rims come from. Just 'a chevy 15" rim' or 'a toyota 15" rim' do me little good out there in the junkyard. What year/make/models should I be looking at?

Thanks!


to get the small backspacing Chevy wheels, you need to find any older full size 4WD Chevy with solid axle front/back.

I think Qman's Toyota rims he ran previously were off a '92....

Any 6 lug wheel could be a possibility (they are all 6 on 5.5") .... from any maker. Chevy, Toyota, Mazda, Isuzu, International, Jeep (early wagoneers) etc.....

I even saw a Bobcat that had 6 lug wheels.....

#8 4RnrRick

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Posted 29 November 2004 - 04:34 PM

I think the least BS Ive ever seen was 3 1/2" on a factory 6 lug wheel. If you call up Summit, they can sell 15" US steel rims with 2" of Backspacing. (Alot of rockcrawler guys use them.) That or you can just install wheel spacers. I've run 2" wheel spacing on my Yota for several years now with no problems.....

#9 bushbasher

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Posted 29 November 2004 - 05:46 PM

31x10.5s on stock toyota 6 spoke steelies (3.5" backspace I think) with room to spare on ea82 struts.

#10 MorganM

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Posted 29 November 2004 - 07:40 PM

Great information guys.

Rick: I'm on a budget :-p No fancy Summit parts in the mail or my wife puts more spray paint on the Subaru :slobber: What year/model did those rims you speak of come off ? That would give me 2" less of back spacing right there :brow:

Brushbasher: What year/model did those come off of?


The Toyota rim I found came out of the back of a first gen 4Runner. I have no idea if it REALLY came on the 4Runner tho becuase it was an old, rusty, half worn, full size spare laying in the back....

Thanks guys!

#11 monstaru

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Posted 29 November 2004 - 09:02 PM

i have found that all toyota 6 lugs we can utilize.they are on any 4x4 vehicle that they sell.the generic steelies if you will, are mainly on 4runners and pickups.most of them if not all are of the backspacing we have been discussing.

#12 VaporTrail

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Posted 29 November 2004 - 09:15 PM

mine were loose wheels so no idea what they actually came off of. pre-88. most likely late 70s/early 80's.

and I think the chevy wheels are quite a bit thicker steel :) it took me much longer than 10 minutes per wheel, and that was with a brand spanking new bit, and a big A half inch drill.

#13 monstaru

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Posted 29 November 2004 - 09:24 PM

ummmm, one word........

drillpress.wow that was easy....that is my plan anyway.

this a chart i found somewhere, it checks out as far as i have tested.......



6Lug x 5.5"
4x4 Chevy
4x4 GMC
Most Isuzu
4x4 Toyota
Most Nissan
Mazda Pickup

#14 MorganM

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Posted 30 November 2004 - 09:17 AM

Must be then McBrat cuz we tore through this Toyota rim with an old bit and B.A.D. Would have used the bridge port but the tire was mounted to the rim still. Wouldnt fit under it :(

I know we can use any of them Monstaru; but I want specificly ones with the least backspacing. Would be nice to know what year/make/model to look at instead of walking up to every 5 lug rim and eye-balling the backspacing with my tape measure.

Looks like late 70's/early 80's chevy is a good start..... how about years/models of Toyotas?

#15 4RnrRick

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Posted 30 November 2004 - 11:43 AM

The rims that I have that are 15x6 with 4.75" of BS are STOCK 4wd Toyota Steel IFS rims. They came on 86-95 Toyota Trucks (non-Tacoma). BTW 86 was the first year for IFS. There are atleast two versions of these rims. One is painted gray and the other is Chrome. I have the gray ones on my datsun trailer and I have a set of chromes one that will go on the subie.

Solid front axle 4wd Toyotas (79-85) rims have less backspacing than the IFS trucks. I believe they are 4" to 3 1/2" but I don't remember. Anyways they are somewhere in that range. Those rims arm also painted gray and look real similiar to the IFS trucks.

#16 singletrack

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Posted 30 November 2004 - 12:40 PM

I understand the concept here, but what does the measurement represent? A line perpendicular from the hub/wheel contact the inside edge of the rim, right?

So is backspacing different than offset, or they interchangeable terms?

Furthermore, what the backspacing of a regular ol' 13" rim? If pug stealies are 5" like morgan says, whats a pug alloy?

#17 4RnrRick

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Posted 30 November 2004 - 01:54 PM

This should help explain it: http://www.skulte.com/adapterfaq.html

Theres lots of info out there on the web. some better than others. The link I posted above I just quickly found and linked to. Just use you favorite search engine and search under "backspacing offest"

Posted Image

And no the terms are not interchangeable. Backspacing and offest are totally different. Backspacing is the distance from teh inside edge of the rim to the mounting surface. Offest is the amount teh wheel mounting surface is offset from the center line of the rim.

#18 monstaru

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Posted 30 November 2004 - 09:20 PM

either would be applicable then......just different measurements for different rims ehhh?the toyota rims i have seem to be just like all the rest i have found lying around.and seem to be the same that anyone who is running toyota rims is running.they seem to have better "backspacing "than pugs..
chevy , the same. am i on the right track here?anyone?

#19 bushbasher

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Posted 30 November 2004 - 09:36 PM

the ones I have are off 85-earlier toyota 4x4 pickups. The really early pickups have ugly stamped steel ones, but mine look like this:

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#20 monstaru

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Posted 30 November 2004 - 09:53 PM

these are mine .....http://www.ultimates...1Picture_41.jpg



i will like them better when they are black

#21 Vanislru

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Posted 01 December 2004 - 12:54 AM

I've got a set like Monstaru's, but I think the later ones have more offset which is what I'm looking for. Flat black makes these rims look awwesome.

Any idea what the offset is on yours Bushbasher?

#22 MorganM

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Posted 01 December 2004 - 01:04 AM

I really dig those Brushbasher :brow: With those rims you can get on some wide tires and still turn!

#23 4RnrRick

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Posted 01 December 2004 - 10:52 AM

these are mine .....http://www.ultimates...1Picture_41.jpg
i will like them better when they are black


Yeah, Thats it..... The ones I have in my garage with 4.75 BS. But I think for now I was going to keep the Retro Chrome on mine for the BlingBling......:lol:

#24 bushbasher

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Posted 01 December 2004 - 02:18 PM

I really dig those Brushbasher :brow: With those rims you can get on some wide tires and still turn!


3.5" maybe 3.25" the other rims i now have are painted white and look n work great.




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