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OrrieG · 09-27-2009, 01:31 PM

The factory assembly manual will have the bolt/rivet dimensions. All I have is a TF manual. Maybe someone with a AD will look it up and post the difference.

This might help:

http://www.gmcpauls.com/47-72_BedWood_Info.htm

It has the spacing of the boards shown, which will show the difference in the locations. You could also match it up with one of the other cross sill to transfer the hole locations. Additional holes will not cause a problem the strength is in the vertical sides of the sill not the top.

09-27-2009, 01:31 PM	#4
OrrieG Registered User Join Date: Jun 2006 Location: Idaho Posts: 8,800	Re: Help with front cross sill The factory assembly manual will have the bolt/rivet dimensions. All I have is a TF manual. Maybe someone with a AD will look it up and post the difference. This might help: http://www.gmcpauls.com/47-72_BedWood_Info.htm It has the spacing of the boards shown, which will show the difference in the locations. You could also match it up with one of the other cross sill to transfer the hole locations. Additional holes will not cause a problem the strength is in the vertical sides of the sill not the top. __________________ 1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread 1964 Chevelle Malibu w/ 355-350TH (daily driver) Helpful AD and TF Manual Site Old Car Manual Project Last edited by OrrieG; 09-27-2009 at 01:42 PM.