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-   -   crossmember bolt size(s)? (https://67-72chevytrucks.com/vboard/showthread.php?t=615054)

dmartin1 02-03-2014 10:08 PM

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!

hugger6933 02-03-2014 10:19 PM

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

dmartin1 02-04-2014 05:10 PM

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

Zable49 02-04-2014 05:51 PM

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).

67c10rustbuket 02-04-2014 06:48 PM

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.

Zable49 02-04-2014 07:59 PM

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.

dmartin1 02-07-2014 12:14 PM

Re: crossmember bolt size(s)?
 
its a 69 shortbed. excellent, thanks a million now i can bolt the sucker back together

66skylarkpost 02-07-2014 03:14 PM

Re: crossmember bolt size(s)?
 
3 Attachment(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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