1971 K/10 longer front wheel studs? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**paul blair** · 09-08-2023, 05:45 PM

1971 K/10 front disc brake 6 lug. Need longer threads for thicker hub on aluminum wheels. 7/16 x 20. pic of stock stud. I have searched and have not had any luck. Thanks for any help...........

**special-K** · 09-08-2023, 10:15 PM

Have you taken a stud in to a good auto parts supplier to match one up? How long is what you have?

**Steeveedee** · 09-08-2023, 10:25 PM

What wheels do you have? In my experience, the nut went far enough into the wheel that it engaged enough of the factory stud threads.

**67 twins** · 09-09-2023, 12:03 AM

Tell me I'm wrong but I'm pretty sure 71 has 1/2-20 studs, not 7/16-20

**too much stuff** · 09-09-2023, 09:56 AM

Quote:

Originally Posted by 67 twins

Tell me I'm wrong but I'm pretty sure 71 has 1/2-20 studs, not 7/16-20

I think all of the 6 lug were 7/16 and 5 lug was 1/2. So a K truck would be 7/16

57taskforce · 09-09-2023, 10:10 AM

Quote:

Originally Posted by too much stuff

I think all of the 6 lug were 7/16 and 5 lug was 1/2. So a K truck would be 7/16

This…

I’ve never messed with this on a half ton but all I can say is don’t believe everything you may find online. I’ve got a front Dana 60 that I wanted longer studs for. Read from the Front 60 bible on pirate and other sites that you could use a different part number stud that was longer… bought those studs and the knurl was in the wrong spot and the diameter was just a tad too big. This is one of those times where you’ll have to physically compare studs to see what you can find in my opinion.

**ga-stepside** · 09-09-2023, 11:58 AM

According to Rockauto the 1971 K10 uses Dorman 619-179. That is 7/16x20 with a .562 knurl and is 1 ¾” long.

Searching for “wheel stud 7/16x20 .562 knurl” I found:
JEGS Press-In Wheel Studs 7/16x20 Thread x 2-7/8 Long x .570 Knurl .562-.569 Hole Size 5 Studs Per Package for $13. That knurl is a bit bigger that what you need but should work. (freeze the studs before insertion and use some assembly lube.). Research tells me that you need to have a hole .008-.010” smaller than the knurl.
The other problem is these come in a pack of 5 so you would need 3 packs.

**67 twins** · 09-09-2023, 11:04 PM

Quote:

Originally Posted by too much stuff

I think all of the 6 lug were 7/16 and 5 lug was 1/2. So a K truck would be 7/16

Oh darn I wasn't thinking about it being a K truck.

**paul blair** · 09-09-2023, 08:14 AM

Quote:

Originally Posted by special-K

Have you taken a stud in to a good auto parts supplier to match one up? How long is what you have?

Hi Tim, I live on an Island and the only auto parts store couldn't help. The overall length from under the head is 1.750 and needs to be 2in. This is on a friends truck.

HotWheelsFan · 09-09-2023, 12:00 PM

Tire shops may also have studs...

**kwmech** · 09-09-2023, 12:32 PM

Every time I build a custom front 44 for a chevy I always convert them to a 1/2'' stud. The 7/16 does not really hold up all that well to larger tires and the tire shops crazy tire guys. Blast the lugs on and make sure the torque wrench makes a clicking sound. The conversion stud I use is the Ford stud, and it does require drilling of the rotor and the hub.

09-08-2023, 05:45 PM	#1
paul blair Senior Member Join Date: Jan 2016 Location: massachusetts Posts: 326	1971 K/10 longer front wheel studs? 1971 K/10 front disc brake 6 lug. Need longer threads for thicker hub on aluminum wheels. 7/16 x 20. pic of stock stud. I have searched and have not had any luck. Thanks for any help........... Attached Images

09-08-2023, 10:15 PM	#2
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,863	Re: 1971 K/10 longer front wheel studs? Have you taken a stud in to a good auto parts supplier to match one up? How long is what you have? __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

09-08-2023, 10:25 PM	#3
Steeveedee Who Changed This? Join Date: Jan 2013 Location: Simi Valley, CA Posts: 10,164	Re: 1971 K/10 longer front wheel studs? What wheels do you have? In my experience, the nut went far enough into the wheel that it engaged enough of the factory stud threads. __________________ ~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA

09-09-2023, 12:03 AM	#4
67 twins Senior Member Join Date: Mar 2019 Location: Herculaneum MO (20 minutes south of St. Louis Posts: 594	Re: 1971 K/10 longer front wheel studs? Tell me I'm wrong but I'm pretty sure 71 has 1/2-20 studs, not 7/16-20 __________________ 67 C10 283 T5 swapped longbed fleetside = wife's daily driver 67 C20 292 (originally a 250)4speed longbed fleetside w/original wooden bed=my project truck 67 C10 283+.060 (so a 292 as well)T5 swapped longbed fleetside=my DD 72 C1500 Sierra Grande 350 TH350 longbed fleetside=wife's fair weather truck Can you tell we are fans of longbed fleetsides & 67s Chris

09-09-2023, 11:58 AM	#7
ga-stepside Senior Member Join Date: Jan 2016 Location: Sugar Hill GA Posts: 368	Re: 1971 K/10 longer front wheel studs? According to Rockauto the 1971 K10 uses Dorman 619-179. That is 7/16x20 with a .562 knurl and is 1 ¾” long. Searching for “wheel stud 7/16x20 .562 knurl” I found: JEGS Press-In Wheel Studs 7/16x20 Thread x 2-7/8 Long x .570 Knurl .562-.569 Hole Size 5 Studs Per Package for $13. That knurl is a bit bigger that what you need but should work. (freeze the studs before insertion and use some assembly lube.). Research tells me that you need to have a hole .008-.010” smaller than the knurl. The other problem is these come in a pack of 5 so you would need 3 packs. __________________ 1967 C10 Step side 1970 AMX 390 1977 Datsun 280Z highly modified with '95 LT1 power

09-09-2023, 12:00 PM	#10
HotWheelsFan Registered User Join Date: Mar 2010 Location: Oregon Posts: 186	Re: 1971 K/10 longer front wheel studs? Tire shops may also have studs... __________________ 1970 C20 Long Bed Fleetside - Restoration My truck videos - Youtube

09-09-2023, 12:32 PM	#11
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,407	Re: 1971 K/10 longer front wheel studs? Every time I build a custom front 44 for a chevy I always convert them to a 1/2'' stud. The 7/16 does not really hold up all that well to larger tires and the tire shops crazy tire guys. Blast the lugs on and make sure the torque wrench makes a clicking sound. The conversion stud I use is the Ford stud, and it does require drilling of the rotor and the hub.



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