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What wheel offset to get?

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Old 02-11-2015, 07:52 AM
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What wheel offset to get?

I'm going to be ordering some wheels and tires this weekend for the yota. I have an 87 pickup, stock everything. I'm going to be running a 31x10.5x15 tire, and geting cragar soft 8 wheels. I'm going to get the wheels in either a 15x7 or 15x8, not sure which will fit the tires better.

I'm not sure what offset to get. I want to have the tires stick out from the fenders by like 1 inch or so. What do you recommend? 7 or 8 inch wide wheel and what offset? If you have pictures of offset options that would be awesome
Old 02-11-2015, 09:15 AM
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You want those bad boys to stick out? 10 inch wide wheel with 45mm offset. If you get 8 wide and they don't stick out like you want you'll have to run diabetes spacers. I'd say go ahead and get the 10. It's like when people lift a truck 4" and wish they had went 6"

Just my .02
Old 02-11-2015, 09:15 AM
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I have no idea what a diabetes spacer is. That was an accident
Old 02-11-2015, 09:31 AM
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Originally Posted by bootscootboogie
You want those bad boys to stick out? 10 inch wide wheel with 45mm offset. If you get 8 wide and they don't stick out like you want you'll have to run diabetes spacers. I'd say go ahead and get the 10. It's like when people lift a truck 4" and wish they had went 6"

Just my .02
lol heck no. I'm talking very minimal "poke" similar to how the wheels are that came on my truck. I have no idea what the backspacing is and i haven't seen them anywhere (not that i looked very hard)

I'm at work so i just grabbed a random picture of my truck that was already online to get an idea of what i'm talking about

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That's about how much "poke" i'm looking to have

These are those wheels I already have from the side view if someone already knows what the offset or "backspacing" of these wheels are

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Old 02-13-2015, 09:53 AM
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did you ever figure out what you were going to go with?

i dont want to jack your thread but ive got a decision to make about some us wheel brand green D windows.

I can get em from summit but only have 2 choices:
4" backspace/-13 mm offset
or
4.75" backspace/+6 mm offset.

like you, i plan on running 31x10.5x15, but am 99% sure im sticking with 15x8" wheels.

i have completely stock suspension etc..

Last edited by tonetone; 02-13-2015 at 09:56 AM.
Old 02-14-2015, 03:44 AM
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15x8 rims, 3.75" backspacing
Old 02-14-2015, 11:11 AM
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15x8 Cragar Soft 8 with 4" back spacing, 31x10.5 (pic is at least 7-8 years old).

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Old 02-26-2015, 06:37 AM
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Yes. I did figure it out. I found a youtube video about measuring backspacing and measured the current wheels. I came up with 3.5" backspacing. I ordered 15x7 cragar soft 8's with the same backspacing. Something is slightly different through since they only stick out about 1/4" from the fender when the old ones were probably almost a full inch. They still look alright and this is the lowest offset I could get the wheels in anyway. I could always get a wheel spacer later if I want to match the old look

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Last edited by Phantez; 02-26-2015 at 06:38 AM.
Old 05-17-2015, 10:07 AM
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Originally Posted by Phantez
Yes. I did figure it out. I found a youtube video about measuring backspacing and measured the current wheels. I came up with 3.5" backspacing. I ordered 15x7 cragar soft 8's with the same backspacing. Something is slightly different through since they only stick out about 1/4" from the fender when the old ones were probably almost a full inch. They still look alright and this is the lowest offset I could get the wheels in anyway. I could always get a wheel spacer later if I want to match the old look

The 15 x 8 's would have given you that inch you wanted for sure but wheel 1/2" wheel spacers will do the trick just fine too
Old 09-12-2020, 05:56 AM
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  • Vehicle: 1979 3 Gen N30 4x4 Deluxe 20R
  • Brand/Style: unknown, no makers mark anywhere
  • Material: Steel
  • Size: 15x9 (I think - measured it myself)
  • Lug Pattern: 6x5.5” (140mm)
  • Offset: -1.5” (38mm)
  • Backspacing: 3.5” (89mm)
  • Center Bore: 4.25” (110mm)
  • Spacers: none
  • Tires: 31x10.5R15
  • Clearance Issues: none
  • Technical Notes: 2” lift
I have 4 running (kinda split-rim style) wheels of anonymous make - but I reckon they look pretty good on Rusty Bob. Problem is I have the spare on a “trailer” rim and I want to know if I need to track down a steel wheel that will carry the load/speed better? Or am I ok with it? But finding a replacement for this configuration (above) is wearing me out... Seriously I’ve looked everywhere! HELP!



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