cross sill notch - The 1947 - Present Chevrolet & GMC Truck Message Board Network

rennalds · 06-17-2010, 05:14 PM

How much do you have to notch the bed cross sill when doing a an under the bed gas tank install? On a 71 long fleetside

*Fitz* · 06-17-2010, 05:17 PM

Quote:

Originally Posted by rennalds

How much do you have to notch the bed cross sill when doing a an under the bed gas tank install? On a 71 long fleetside

Depends on the tank you plan to use. For an 18 or 22 gal. ECE tank...no notch is required.

rennalds · 06-17-2010, 05:18 PM

Im using the poly tank from brothers

71tahoe · 06-18-2010, 04:33 PM

If you notch it in half then you can re-weld it to retain the strength. Should give enough clearance.

06-17-2010, 05:14 PM	#1
rennalds Registered User Join Date: Nov 2009 Location: vacaville california Posts: 109	cross sill notch How much do you have to notch the bed cross sill when doing a an under the bed gas tank install? On a 71 long fleetside Last edited by rennalds; 06-17-2010 at 05:15 PM.

06-17-2010, 05:18 PM	#3
rennalds Registered User Join Date: Nov 2009 Location: vacaville california Posts: 109	Re: cross sill notch Im using the poly tank from brothers

06-18-2010, 04:33 PM	#4
71tahoe Registered User Join Date: May 2006 Location: Jonesboro, AR Posts: 916	Re: cross sill notch If you notch it in half then you can re-weld it to retain the strength. Should give enough clearance.



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