Considering 1/2" Bora wheel spacers for stance, but concerned about bearings

hiPSI · Jun 9, 2023

Slurmin Furrmen said: ↑

T=F*L

Load assumption: static

GVWR of my DCLB is 5600 lbs and lets assume a 60/40 weight split = 3360 F and 2240 R

The wheel mating surface is approximately 6" outboard of the centerline of the bearing which results in approximately 1690 ft lbs F and 1120 ft lbs R.

If you add a 1.25 spacer (like I did) you would get approximately 2100 ft lbs F and 1400 ft lbs R.

You see much more dynamic load than these numbers every time you hit a pot hole at more than 20 mph. This is also the simplest (and least accurate) way to approximate the load difference and makes a lot of assumptions, generalizations, and simplifications because ... its the internet and I dont care to prove either of you wrong.

The change in load is not negligible, but its also not significant considering the safety factor with which components are manufactured and the expected operating ranges of the components. Will they wear faster? Of course, but likely not by a significant amount.
Click to expand...

Good answer.

Sig Taco · Jun 9, 2023

Go .75" Boras. I have them on 285/75/17 on 17x8.5 0 offset. . Still subtle.

Slurmin Furrmen · Jun 9, 2023

Mike Hunt said: ↑

Awesome, thank you. Appreciate some thought out info rather than the typical regurgitated statements people so often throw out here.
Click to expand...

Actually, cut my numbers in half ... I calculated per axle not per wheel.

Novax · Apr 3, 2025

Sig Taco said: ↑

Go .75" Boras. I have them on 285/75/17 on 17x8.5 0 offset. . Still subtle.
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How is holding up. I need 1/2 inch to get 0 offset

JFriday1 · Apr 3, 2025

Get the 3/4" ones bc they maintain the wheel being hub centric. It will keep the wheel centered over the hub and avoid vibes. The wheel sits on the hub vs sitting on the wheel studs only.

jgarverick · Apr 3, 2025

JFriday1 said: ↑

Get the 3/4" ones bc they maintain the wheel being hub centric. It will keep the wheel centered over the hub and avoid vibes. The wheel sits on the hub vs sitting on the wheel studs only.
Click to expand...

This is the way. If you can go 3/4 it’s sooooo much easier. Just bolt them on.

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Considering 1/2" Bora wheel spacers for stance, but concerned about bearings

#21
hiPSI Laminar Flow

#22
Sig Taco Well-Known Member

#23
Slurmin Furrmen Welder / Fabricator

#24
Novax Member

#25
JFriday1 Well-Known Member

#26
jgarverick Well-Known Member

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Welcome to Tacoma World!

Considering 1/2" Bora wheel spacers for stance, but concerned about bearings

#21 hiPSI Laminar Flow

#22 Sig Taco Well-Known Member

#23 Slurmin Furrmen Welder / Fabricator

#24 Novax Member

#25 JFriday1 Well-Known Member

#26 jgarverick Well-Known Member

Products Discussed in Entire Site Forum: 3rd Gen. Tacomas (2016-2023)

#21
hiPSI Laminar Flow

#22
Sig Taco Well-Known Member

#23
Slurmin Furrmen Welder / Fabricator

#24
Novax Member

#25
JFriday1 Well-Known Member

#26
jgarverick Well-Known Member

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