Results 11 to 14 of 14
Thread: Lug # and pattern
12-11-2012, 06:49 PM #11
For Ford, they have used 6 lug since 2004 IIRC. Ford had a 7 lug wheel for heavy payload models.
GM switched to 6 lug for the 1/2 tons trucks in 1999 and continue to this day.
IIRC, all 3/4 and 1 ton Ford, GM, and Dodge/Ram have 8 lugs.
Toyota continues to use 5 lugs to this day on the Tundra.
12-11-2012, 07:45 PM #12
I don't think there's a set reason as to the number of lugs, but in general more lug (or larger lugs because some medium duty trucks use 5 or 6 really thick lugs) spreads the forces between the wheel and the hub over a larger area, which gives it more strength to resist any sort of impact or damage it might have to deal with. I think as far as weight goes, most truck axles would be damaged before you managed to shear all of the lugs at once, regardless of whether its 5, 6, 7, or 8, but the extra lugs are probably still there because its better not to take that chance.
The other thing to think of is that the lug nuts hold the wheel and the hub together side-to-side and creates friction between the hub and wheel, holding it in place. The lug nuts generally don't take a lot of rotational force because the friction between the wheel and hub do that. The lug nuts just keep everything in place so it all works. If the manufacturer thinks they only need 5 lugs to sufficiently maintain that friction, then the number of lug nuts doesn't have a huge effect on the end result.
2001 Silverado Reg. Cab Not-So-Base -- SOLD
2003 Avalanche Z71. No Cladding. Check out my Mod thread.
1974 Triumph Spitfire 1500 - Work in Progress
2003 Sierra 3500 Duramax. The Newer, Better Work Truck
12-12-2012, 04:17 PM #13
- Join Date
- Dec 2011
- Blog Entries
They still have 7 lug vans. I understand that the rear lugs are under minimal strain, but the fronts have to be under more pressure because they hold the wheel on while steering.
I really was just wondering if there was a standard which it seems there isn't.
1996 Chevy Tahoe LT 5.7L V8 4X4 202,000+ miles. Built proudly at Janesville Assembly in Janesville, Wisconsin
Basic mods: Lights all over, bunch of electrical work, and a couple cooling mods.
Check out my other mods in My Garage: http://www.gmtruckclub.com/forum/sho...t-Tahoe-4-Door
12-14-2012, 05:26 PM #14
- Join Date
- Feb 2007
- Blog Entries
Just for the record, there are some "light duty" 3/4 ton trucks have have 6 lugs. One that sticks in my head is a 1990 Silverado 3/4 ton.Christopher
1991 Chevy Suburban 1/2 ton 2WD w/ chevy SBC 350-3/4 ton drivetrain upgrade w/4.10 gears 199K miles
2005 Saturn ION-2 Stock 255K miles
1982 Bronco, 1993 Bronco (sold), 1971 M35A2 Deuce and a Half
There are 10 kinds of people, those who understand binary, and those who dont...
Remember kids, the only difference between screwing around and science is writing it down- Adam Savage
By 08_rado_rocker in forum Wheels & TiresReplies: 8Last Post: 07-07-2012, 05:54 PM
By 454burb in forum Chevy Suburban Forum (GMC Yukon XL)Replies: 9Last Post: 05-17-2009, 11:27 AM
By Sleepersti in forum Lifted & Offroad SuspensionReplies: 2Last Post: 01-30-2009, 01:21 AM
By ct9a in forum Chevy Suburban Forum (GMC Yukon XL)Replies: 0Last Post: 07-26-2008, 01:15 PM
By stockchevy1983 in forum Lifted & Offroad SuspensionReplies: 6Last Post: 08-17-2007, 11:50 PM