A little help? Bed bolt size - The 1947 - Present Chevrolet & GMC Truck Message Board Network

craftman555 · 11-25-2012, 11:19 PM

Hello All,
This is my first post on this forum and I'm looking for a little help. I can usually find what I'm looking for but this one is driving me nuts! I have a 68 LWB C10 with a steel floor bed and all I need is the size and count of the bolts that hold the bed sides to the floor, the wheel well bolt size and the size of the bolts that hold the bed to the frame.

I bought this truck with the bed off and in pieces with no bolts at all. I just want to buy the bolts from the hardware store so I can get it on the road as soon as possible. Any and all help is greatly appreciated.

cdowns · 11-26-2012, 10:42 AM

count the number of empty holes// that is how many u need

craftman555 · 11-26-2012, 11:01 AM

I understand I can count the holes to get the amount but that's assuming they are all the same diameter and length. Are you saying all the bolts are the same size?
Posted via Mobile Device
Posted via Mobile Device

DorianB · 11-26-2012, 11:04 AM

I'm much more familiar with wood beds than metal ones, but LMC has some exploded views as it relates to the bed to frame attachments and other parts.

http://www.lmctruck.com/icatalog/cb/t.aspx?Page=38

Also, don't be too concerned with the "right" bolt as much as you need to make sure that the bolt fits the hole.
Grade 8 bolts are best, but you likely don't need that much strength holding the bed down (unless you will be zooming this truck off ramps and jumps!)

I went a lot bigger on the bolts I used to bolt the bed to the frame simply because I had the bolts and the hole was big enough to allow them.

Shyguy · 11-26-2012, 11:05 AM

I sure wish I could help you, but I have never had a fleetside bed apart, hopefully some one that has will chime in with more info.

snj8198 · 11-26-2012, 12:55 PM

dang, i have a brand new set for your application i would just send ya but i have them packed away in my storage unit 8 hours from here. no, i don't recall the size.

missinfishin10 · 11-26-2012, 01:25 PM

I have no idea how many there are... but, I have a complete Stainless kit I'm not going to use. I'll make you a deal @ $20.00 shipped to you.

missinfishin10 · 11-26-2012, 02:10 PM

They look to be a 5/16" x 3/4" x 16 Carriage Bolts.
Round head with a square neck. Trying to count them in the bag is tough. There is at least 40 Bolts, Washers, Nuts and Lock Washers. Hope this helps

craftman555 · 12-01-2012, 12:53 PM

Exactly what I was looking for.....
Thanks for the replies.

11-25-2012, 11:19 PM	#1
craftman555 Registered User Join Date: Nov 2012 Location: DeMotte Posts: 3	A little help? Bed bolt size Hello All, This is my first post on this forum and I'm looking for a little help. I can usually find what I'm looking for but this one is driving me nuts! I have a 68 LWB C10 with a steel floor bed and all I need is the size and count of the bolts that hold the bed sides to the floor, the wheel well bolt size and the size of the bolts that hold the bed to the frame. I bought this truck with the bed off and in pieces with no bolts at all. I just want to buy the bolts from the hardware store so I can get it on the road as soon as possible. Any and all help is greatly appreciated. Last edited by craftman555; 11-25-2012 at 11:27 PM.

11-26-2012, 10:42 AM	#2
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: A little help? Bed bolt size count the number of empty holes// that is how many u need __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

11-26-2012, 11:01 AM	#3
craftman555 Registered User Join Date: Nov 2012 Location: DeMotte Posts: 3	Re: A little help? Bed bolt size I understand I can count the holes to get the amount but that's assuming they are all the same diameter and length. Are you saying all the bolts are the same size? Posted via Mobile Device Posted via Mobile Device

11-26-2012, 11:04 AM	#4
DorianB Registered User Join Date: Apr 2010 Location: Buford, Ga Posts: 205	Re: A little help? Bed bolt size I'm much more familiar with wood beds than metal ones, but LMC has some exploded views as it relates to the bed to frame attachments and other parts. http://www.lmctruck.com/icatalog/cb/t.aspx?Page=38 Also, don't be too concerned with the "right" bolt as much as you need to make sure that the bolt fits the hole. Grade 8 bolts are best, but you likely don't need that much strength holding the bed down (unless you will be zooming this truck off ramps and jumps!) I went a lot bigger on the bolts I used to bolt the bed to the frame simply because I had the bolts and the hole was big enough to allow them. __________________ In my opinion, it works best to have the seat out so you have room to flop your body around while standing on your head. -ashx2 Last edited by DorianB; 11-26-2012 at 11:08 AM. Reason: (additional info)

11-26-2012, 11:05 AM	#5
Shyguy Junior Member Join Date: Dec 2006 Location: Southeast Missouri Posts: 2,436	Re: A little help? Bed bolt size I sure wish I could help you, but I have never had a fleetside bed apart, hopefully some one that has will chime in with more info. __________________ '67 Chevy C-20 short stepper - build complete, 454/SM-465. '75 C-30 Single Cab DRW-350 small block/NP-435. '77 GMC-6500 Dump Truck, 427 Tall Deck. '92 GMC K-3500 Duallie, 454/4L80E.

11-26-2012, 12:55 PM	#6
snj8198 Registered User Join Date: Feb 2007 Location: Star Valley, WY Posts: 2,038	Re: A little help? Bed bolt size dang, i have a brand new set for your application i would just send ya but i have them packed away in my storage unit 8 hours from here. no, i don't recall the size. __________________ Steve 1971 GMC Longbox. Full Roller Stroker 489 w/ FiTech EFI, Chris Straub Cam/NV4500/205/D60/14B w. Grizzly Locker and 4.11's. 2" Lift on 33's

11-26-2012, 01:25 PM	#7
missinfishin10 Amazed Member Join Date: May 2010 Location: Dahlonega Georgia Posts: 486	Re: A little help? Bed bolt size I have no idea how many there are... but, I have a complete Stainless kit I'm not going to use. I'll make you a deal @ $20.00 shipped to you. Attached Images __________________ 71 LWB Fleetside 1950 3100 Original Project! Last edited by missinfishin10; 11-26-2012 at 02:32 PM.

11-26-2012, 02:10 PM	#8
missinfishin10 Amazed Member Join Date: May 2010 Location: Dahlonega Georgia Posts: 486	Re: A little help? Bed bolt size They look to be a 5/16" x 3/4" x 16 Carriage Bolts. Round head with a square neck. Trying to count them in the bag is tough. There is at least 40 Bolts, Washers, Nuts and Lock Washers. Hope this helps __________________ 71 LWB Fleetside 1950 3100 Original Project!

12-01-2012, 12:53 PM	#9
craftman555 Registered User Join Date: Nov 2012 Location: DeMotte Posts: 3	Re: A little help? Bed bolt size Exactly what I was looking for..... Thanks for the replies.



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