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#1 |
Senior Member
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Location: massachusetts
Posts: 328
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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...........
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#2 |
Special Order
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Location: Mt Airy, MD
Posts: 85,858
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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?
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"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 ~ |
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#3 |
Who Changed This?
![]() Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,444
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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.
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~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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#4 |
Senior Member
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Location: Herculaneum MO (20 minutes south of St. Louis
Posts: 619
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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
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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 |
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#5 |
Senior Member
![]() Join Date: Jan 2016
Location: massachusetts
Posts: 328
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Re: 1971 K/10 longer front wheel studs?
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.
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#6 |
Roadtrip!
![]() Join Date: Feb 2003
Location: Grand Rapids MN
Posts: 13,737
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Re: 1971 K/10 longer front wheel studs?
I think all of the 6 lug were 7/16 and 5 lug was 1/2. So a K truck would be 7/16
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67 gmc custom lwb dakota truck. Sold...And bought back 69 swb 4x4 project (in progress) 70 c-10 lwb texas truck 70 4x4/BB/bkts/posi/tach(retired) 70 swb (wifes) 70 jimmy camper 71 K-5 factory 2wd 71 cheyenne 4x4/tach/posi/ plow rig 71 Cheyenne20 BB, buckets, tach, tilt, 4 speed 72 jimmy CST wyoming rig 72 jimmy Colorado rig 72 lifted texas 4x4 3/4 ton burb 65 fury conv. 383/auto 65 chrysler 300 "L" 413 auto |
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#7 | |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,396
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Re: 1971 K/10 longer front wheel studs?
Quote:
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.
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Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne: 5” lift, 35’s, front dana 60 blah blah blah… http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB: 4” lift 33”s… in a million pieces http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's |
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#8 |
Registered User
Join Date: Jan 2016
Location: Sugar Hill GA
Posts: 369
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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.
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1967 C10 Step side 1970 AMX 390 1977 Datsun 280Z highly modified with '95 LT1 power |
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#9 |
Registered User
Join Date: Mar 2010
Location: Oregon
Posts: 189
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Re: 1971 K/10 longer front wheel studs?
Tire shops may also have studs...
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#10 |
Senior Member
![]() Join Date: Mar 2003
Location: Colfax-California
Posts: 8,554
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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---Dorman 610-219, and it does require drilling of the rotor and the hub.
Last edited by kwmech; 06-11-2024 at 11:17 AM. |
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#11 | |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,396
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Re: 1971 K/10 longer front wheel studs?
Quote:
__________________
Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne: 5” lift, 35’s, front dana 60 blah blah blah… http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB: 4” lift 33”s… in a million pieces http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's |
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#12 | |
Registered User
Join Date: Jan 2016
Location: Sugar Hill GA
Posts: 369
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Re: 1971 K/10 longer front wheel studs?
Quote:
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1967 C10 Step side 1970 AMX 390 1977 Datsun 280Z highly modified with '95 LT1 power |
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#13 |
Senior Member
![]() Join Date: Mar 2019
Location: Herculaneum MO (20 minutes south of St. Louis
Posts: 619
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Re: 1971 K/10 longer front wheel studs?
Oh darn I wasn't thinking about it being a K truck.
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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 |
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#14 |
Registered User
Join Date: Feb 2011
Location: Under the Truck Dreaming
Posts: 706
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Re: 1971 K/10 longer front wheel studs?
Take a cool refreshing dip in here....
https://www.dormanproducts.com/pages...are/index.aspx For some unknown reason I have a pdf version of the available wheel products but cant find a link to that same book.....ahh progress....
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72 K20 Custom Camper, D60, 14BFF, full roller 406 TPI w custom built ECU and yes..it has tow hooks... |
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#15 | |
Registered User
Join Date: Jun 2016
Location: Richland Or.
Posts: 115
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Re: 1971 K/10 longer front wheel studs?
Quote:
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#16 |
Registered User
Join Date: Jun 2016
Location: Richland Or.
Posts: 115
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Re: 1971 K/10 longer front wheel studs?
Should have been 610-179? Doesn't look like thread length is long enough, am going to order 610-156...let ya know how they work. thanks Mav
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#17 |
All stock and staying that way
![]() Join Date: Jul 2003
Location: Elkland, PA
Posts: 1,498
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Correct 1970 K10 FRONT studs are GM 3829376.
Dorman number is 610-041 Dimension is 7/16"x20 1 3/8" long
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1970 K/5 Blazer CST 4WD, Bronze, 93k ACT. miles, 350, 4 speed, positraction, 16.5" x 8.25" wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration in progress... ![]() 1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor... ![]() 2017 Sierra 1500 SLT 4WD, Black, 41k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 60k miles, 3.6, 8L45, 3.23 LS, 18" wheels |
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#18 |
Registered User
Join Date: Jun 2016
Location: Richland Or.
Posts: 115
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Re: 1971 K/10 longer front wheel studs?
Yes, that works for steel wheels, but these MT classic 3s are about half an inch thicker, so need 1 3/4 in. of thread...
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#19 |
Senior Member
![]() Join Date: Mar 2003
Location: Colfax-California
Posts: 8,554
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Re: 1971 K/10 longer front wheel studs?
There is nothing available in a longer 7/16'' stud with a .565 knurl in
Dorman. You have to upgrade to a 1/2'' stud and drill the hub hole with a 19/32 drill bit, this will be using the dorman 610-279 and grinding the shouldered tip off a little bit if it is too long for an enclosed nut. It is this or go with a different nut (7/16) that with a shoulder that will capture more threads by going inside the hole of the rim. A tire any larger than a 33 tall will eventually break the 7/16'' studs if you are out wheeling and not keeping on top of keeping them torqued down properly. Even at that, they will eventually break. Some trucks I have even converted them to a 9/16'' stud when customers insist on running a 40 or 44'' tire on a dana 44, that's a whole different story about carnage. |
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#20 |
Registered User
Join Date: Jun 2016
Location: Richland Or.
Posts: 115
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Re: 1971 K/10 longer front wheel studs?
Am showing dorman 610-156 has an uhl of almost 1 3/4. Knurl is .557 ,just short of stock .561, if they go in too sloppy put some epoxy on? Only have 30 1/2 in. tires and I got over the muddin, etc. years ago. No doubt your method will work and be tougher, just don't want to drill out brake drums, at least not yet....
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#21 |
Senior Member
![]() Join Date: Mar 2003
Location: Colfax-California
Posts: 8,554
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Re: 1971 K/10 longer front wheel studs?
A 610-156 has the knurl in the rotor position where it will not do a thing due to the larger hole in the rotor, not the hub where it locks it in. So that's not going to work. Try again
EDIT: Sorry missed the drum brake application ---try the 610-114, They'll press in tighter as the knurl is 582 where-as the 610-041 is 575 Last edited by kwmech; 06-11-2024 at 04:22 PM. |
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#22 |
Registered User
Join Date: Jun 2016
Location: Richland Or.
Posts: 115
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Re: 1971 K/10 longer front wheel studs?
What I looked at showed the 610-041 with a .561 knurl, and the 156 w/ .557, am getting mine on Dormans site. You have a better source? thanks
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#23 |
Registered User
Join Date: Jun 2016
Location: Richland Or.
Posts: 115
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Re: 1971 K/10 longer front wheel studs?
Checked again, we are both right? Shows the 041 w/ .561 in bold type, farther down in specs it shows .575.... ??
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#24 |
Senior Member
![]() Join Date: Mar 2003
Location: Colfax-California
Posts: 8,554
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Re: 1971 K/10 longer front wheel studs?
lets try this
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#25 |
Registered User
Join Date: Jun 2016
Location: Richland Or.
Posts: 115
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Re: 1971 K/10 longer front wheel studs?
Nice! Thanks! That is 2 for the .575 and still 1 on .561, am guessing the .575 is right, I emailed Dorman earlier and asked about discrepancy, haven't heard back yet. If so your specs indicate 114 would be closer than 156 (knurl). Shoulder is between knurl and threads? Don't know how much that matters....only advantage of the 156 is 1/16 in. longer. Already had Napa order the 156 early this am, after I said I couldn't use the 041s I had him order yesterday, don't want to wear out my welcome....so at least I will check the fit before asking them to take back a second set, thanks again for PDFs
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