kangaroo
Member
Posts: 176
Reg: 11-04-06
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06-24-12 11:37 AM - Post#2240780
I know the 95 rims are 5 on 5 but dont know if the center will fit over the 84 silverado wheel hubs. I need a spare for my truck and found one with a good tire pretty cheap but not sure if it will fit before I buy it? Any one know? Thanks
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 gchemist
Senior Chevytalk Moderator
Posts: 20885
Loc: Austin, TX 78748
Reg: 05-09-00
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06-24-12 11:56 AM - Post#2240786
In response to kangaroo
It will fit as long as it's not a 4X4 wheel. 88+ 4X4's are 6 lug. The center wheel hole will not clear the large hub of the older truck.
'83 Silverardo XST - ZZ4 powered
'96 GMC Jimmy LS |
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 Vaughn
"11th Year" Gold Supporting Member
Posts: 13645
Loc: Colorado Springs, CO
Reg: 08-08-04
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06-24-12 01:17 PM - Post#2240809
In response to gchemist
Wheels have been hub centric since the 70s. If you have an 84, it already uses hub centric wheels.
Hub centric means that the wheel isn't located on the rotor (or drum) by the lug nuts. It is located on the center of the rotor/drum, and only held on by the lugs. The reason that vehicles started doing this is because the wheels (when centered by lugs) tended to be slightly (or in some cases badly) off center from the drum/rotor - causing the wheels to make a rump-rump-rump noise while going down the road, and it makes you feel like you are on one of those kiddie roller coasters that just go up and down a little bit.
Back when bias ply tires were the only tires out there, that was perfectly acceptable because bias ply tires are always a little off center (unless you had them shaved on the car with special tire equipment) - so the car companies didn't bother with hub centric wheels. However, once radial tires came on the scene - and radials are self centering when rolling down the road due to their construction - hub centric designs became necessary.
You may have to use different lug nuts to get the wheels to bolt up. 84 wheels had a straight taper, while the mid 90s trucks had a rounded taper on the lug. Using straight taper lugs on a rounded wheel significantly reduces the contact area, which can cause the lug nuts to loosen over time, and possibly fail. You should be able to get the right lug nuts from Autozone or O'Reillys or whatever parts store chain you have nearby.
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bowtieollie
ChevyTalk Subject Matter Expert
Posts: 20903
Loc: See the USA in your Chevr...
Reg: 12-06-99
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06-24-12 06:04 PM - Post#2240919
In response to Vaughn
Hi Vaughn,
With all due respect, I am afraid I cannot agree with the broad stroke you painted with the "all wheels since '84 are hub centric...."
I will go out on a limb and agree that factory alloy wheels are hub centric - but the steel wheels did rely on the lug centric concept.
ie - 1990 R2500 with a severe vibration after new tires installed. Factory steel wheels on an unmolested truck.
I rebalanced the wheels with my lug centric Coates adapter and the truck is as smooth as glass.
Not the first time I have run into this issue and it almost always involves steel wheels vs alloy and the tire shop (both dealer and independent) using the cone adapter which would be "hub centric"
Bowtieollie
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