3.32 - What is the difference between "hub centric" and "bolt or lug centric" rims ? (All)
Description
This article is from the Toyota Tundra FAQ, by Steve Yee with numerous contributions by others.
3.32 - What is the difference between "hub centric" and "bolt or lug centric" rims ? (All)
Ninety Nine percent of all vehicles out in the world today utilze a "hub
centric" rim. What that means is that when your tire/wheel combination is
being balanced by a tire shop, they utilize a balance machine that relies on
the hub of the rim to be a "true centering" aid. In other words, the center
hole of the rim is what the tire shop uses to base the tire/wheel combination
balance on. The factory alloys on the Tundra SR5 and Limited are reported to
be Hub Centric rims.
Some Toyota 4Runner, Tacoma, Land Cruiser and Tundra factory rims have been
reported to be "bolt centric" or "lug centric", which means that the tire/wheel
combination must be centered on the lugs, and not using the center hub. An
excellent example of this is the Ivan Stewart TRD wheel for the Tundra, which
is a Lug Centric Wheel.
To correct this, tire shops and service centers must use a combination of a
Hunter tire balance machine and a Haweka adapter. According to the Internet,
all 4Runner wheels must be balanced using this combination per TSB SU002-96.
The Tundra equivalent to the 4Runner TSB is TSB# BR003-00.
Please ask your dealership or your tire service center if they have the listed
equipment. It has been reported that many Toyota dealers do not. If you have
tire work done at a Toyota dealership, ask to see the actual lug centric
converter.
For more information on this subject, please check this web page out at
http://forums.vmag.com/suv4run0499/messages/3295.html
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