what size cage bolt do i use on my box? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

pat123 · 08-13-2008, 12:38 PM

what size cage bolt do i use on my box?
is it 7/16?

66skylarkpost · 08-13-2008, 03:58 PM

you mean carriage bolts ? u can use 7/16 yet you may have to address the holes in the frame and they cost more . 3/8 are typicaly used

pat123 · 08-13-2008, 06:09 PM

whats stock?

68gmsee · 08-13-2008, 07:16 PM

Which carriage bolts are you referring to?

The bed to chassis mounting bolts or the ones that mount the sides, inner fenders and front panel to the bed?

pat123 · 08-13-2008, 07:58 PM

the bed ones
well both would be good to know

68gmsee · 08-13-2008, 09:28 PM

On my GMC fleetside the bed bolts are 3/8th by 4" long. The short carriage bolts are 1/2" by 5/16th.

I wasn't able to find the 1/2 inch length carriage bolts in local hardware stores. The shortest they carry here is 1 inch.

08-13-2008, 12:38 PM	#1
pat123 Pat Join Date: Jan 2008 Location: canada, bc Posts: 243	what size cage bolt do i use on my box? what size cage bolt do i use on my box? is it 7/16?

08-13-2008, 03:58 PM	#2
66skylarkpost Registered User Join Date: Mar 2006 Location: kearney,nebraska Posts: 443	Re: what size cage bolt do i use on my box? you mean carriage bolts ? u can use 7/16 yet you may have to address the holes in the frame and they cost more . 3/8 are typicaly used __________________ '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

08-13-2008, 06:09 PM	#3
pat123 Pat Join Date: Jan 2008 Location: canada, bc Posts: 243	Re: what size cage bolt do i use on my box? whats stock?

08-13-2008, 07:16 PM	#4
68gmsee Active Member Join Date: Jul 2007 Location: Centrally located between Houston, Austin and Waco. BCS area. Posts: 7,947	Re: what size cage bolt do i use on my box? Which carriage bolts are you referring to? The bed to chassis mounting bolts or the ones that mount the sides, inner fenders and front panel to the bed?

08-13-2008, 07:58 PM	#5
pat123 Pat Join Date: Jan 2008 Location: canada, bc Posts: 243	Re: what size cage bolt do i use on my box? the bed ones well both would be good to know

08-13-2008, 09:28 PM	#6
68gmsee Active Member Join Date: Jul 2007 Location: Centrally located between Houston, Austin and Waco. BCS area. Posts: 7,947	Re: what size cage bolt do i use on my box? On my GMC fleetside the bed bolts are 3/8th by 4" long. The short carriage bolts are 1/2" by 5/16th. I wasn't able to find the 1/2 inch length carriage bolts in local hardware stores. The shortest they carry here is 1 inch.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.