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#1 |
Registered User
Join Date: Aug 2008
Location: mohave valley,arizona
Posts: 1,088
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crossmember bolt size(s)?
my truck didnt really come with bolts in the front suspension.all mixed matches and rusted gone.
does anyone know the right size/pitch(if it even matters) for bolting the front crossmember to the frame? it would be awesome!
__________________
1969 Shortbed in progress 1982 short step, few suspension and motor upgrades.getting a 468 1978 Shortbed fleet side bonanza fully loaded 1978 k20 Silverado loaded.currently engine-less 1989 k10 suburban 9" lift 65 nova And more |
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#2 |
Registered User
Join Date: Oct 2008
Location: Marianna Arkansas
Posts: 7,270
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Re: crossmember bolt size(s)?
Medium. No just kidding, 3/8 course threads I think? Well the course I know is right I think part is the 3/8 bolt size. Jim
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#3 |
Registered User
Join Date: Aug 2008
Location: mohave valley,arizona
Posts: 1,088
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Re: crossmember bolt size(s)?
anyone know the length and or pitch?
wanna make sure i get the bolts to suffice or am i over thinking this?lol
__________________
1969 Shortbed in progress 1982 short step, few suspension and motor upgrades.getting a 468 1978 Shortbed fleet side bonanza fully loaded 1978 k20 Silverado loaded.currently engine-less 1989 k10 suburban 9" lift 65 nova And more |
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#4 |
Registered User
Join Date: Jun 2007
Location: Lacey, Wa
Posts: 181
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Re: crossmember bolt size(s)?
I have mine sitting on the garage floor right now, so as soon as I get home from work I will take a look for ya. (Unless someone answers prior to me getting home).
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1970 ![]() SBC350 / TH350 '84 C20 Front Disc Brakes/Control Arms |
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#5 |
Registered User
Join Date: Apr 2011
Location: Mustang, Oklahoma
Posts: 2,806
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Re: crossmember bolt size(s)?
What year truck ? I don't see a 67-72 in your sig.
A 67-72 C10 uses 7/16-14 x 1.5" (fourteen bolts). Could be shorter but that's what the general used.
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Dan <---(my name) 67 SWB C10 project "GEORGIA"-59 Brookwood 2dr wag...Next project-03 Tahoe 4x4 5.3 family ride-07 Hondur Accord, commuter car |
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#6 |
Registered User
Join Date: Jun 2007
Location: Lacey, Wa
Posts: 181
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Re: crossmember bolt size(s)?
So double checked for a c20 and they are the same as c10. So Dan (67c10rustbucket) is correct. Oh and make sure you use all grade 8 hardware when you replace.
__________________
1970 ![]() SBC350 / TH350 '84 C20 Front Disc Brakes/Control Arms |
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#7 |
Registered User
Join Date: Aug 2008
Location: mohave valley,arizona
Posts: 1,088
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Re: crossmember bolt size(s)?
its a 69 shortbed. excellent, thanks a million now i can bolt the sucker back together
__________________
1969 Shortbed in progress 1982 short step, few suspension and motor upgrades.getting a 468 1978 Shortbed fleet side bonanza fully loaded 1978 k20 Silverado loaded.currently engine-less 1989 k10 suburban 9" lift 65 nova And more |
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#8 |
Registered User
Join Date: Mar 2006
Location: kearney,nebraska
Posts: 443
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Re: crossmember bolt size(s)?
there are a total of 14 bolts. there's 6 - 1/2" bolts with unique "squared" flat washers with lock washers and nuts that go vertical thru the inside of the frame having the nuts in the frame . 4- 7/16" with a unique flat washers and a lock washer that thread from the inside of the frame. and then 4- 7/16" bolts with just lock washers and nuts that go so the nuts are outside of the frame
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'70 k-10 longbox- mid 70's drivetrain 350/350 487x heads 10.1:1 flowmasters ,35's 3.73's auburn posi ,rear shackle flip. '72 short stepside U.S. forestry truck, '73 455 buick,400 turbo,dropped 2"-4 1/4" ,3.07 posi,:'89 silverado 1500 ,OK truck ,5.7 holley tbi ,trick 700r4 3.07 auburn posi ,and my '66 skylark ,'73 centurion and my '84 monte carlo imca stock car Last edited by 66skylarkpost; 02-07-2014 at 03:37 PM. |
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