Anyone here box there frame? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chevykid04 · 03-30-2004, 04:30 PM

any one here "box" the frame to stiffen it up? if so how does it look and what exactly did you do to it? any pictures?

jamis · 03-31-2004, 05:01 PM

I have seen one done and it looked like a pain in the but to do. If your going to race it, then you should just put in a roll cage and that will stiffen it up plenty.

No need to make it stiffer for the street. IMO

ECE sells C-channel made to fit inside the frame rails but that will only work in the staight sections. You can weld or bolt it in

ShamrockCustoms · 03-31-2004, 08:16 PM

if you are going to box the frame for added strength, use some 1/8" to 3/16" plate to use as filler metal. Get some cardboard or construction paper board and make a template for the filler pieces. trace these out on your metal and cut to shape.

Here's where people will differ on opinion and need: where to weld the piece. some people like to weld it flush, some opt to leave a little ledge for mounting purposes. either way is cool.

one thing i would suggest but is not entriely necessaryis to leave tabs on your filler piece. then notch the frame to match these tabs, they will help hold the piece in place.

if you are going to box the frame merely for looks, you can go with a thinner filler metal. hope this helps! good luck!

PS when doing something like this, don't forget that certain things will be moved/changed to finish it. ie brake lines, fuel lines, wiring, etc....

402GLH · 03-31-2004, 08:39 PM

My longbed has a 402 and it torques the dog out of the frame. I thought about boxing or adding something like a cushioned crossbar..

Course it needed new cab rubbers etc too so that made it worse..

03-30-2004, 04:30 PM	#1
chevykid04 4 speed, hurst shiftin Join Date: Jun 2002 Location: Hudson, Wi Posts: 406	Anyone here box there frame? any one here "box" the frame to stiffen it up? if so how does it look and what exactly did you do to it? any pictures? __________________ Shane 1970 Chevy C10

03-31-2004, 05:01 PM	#2
jamis F.A.S.T. president Join Date: Sep 2003 Location: Florida Posts: 1,883	I have seen one done and it looked like a pain in the but to do. If your going to race it, then you should just put in a roll cage and that will stiffen it up plenty. No need to make it stiffer for the street. IMO ECE sells C-channel made to fit inside the frame rails but that will only work in the staight sections. You can weld or bolt it in Last edited by jamis; 03-31-2004 at 05:04 PM.

03-31-2004, 08:16 PM	#3
ShamrockCustoms Project56 on hold Join Date: Aug 2003 Location: Burleson, TX Posts: 489	if you are going to box the frame for added strength, use some 1/8" to 3/16" plate to use as filler metal. Get some cardboard or construction paper board and make a template for the filler pieces. trace these out on your metal and cut to shape. Here's where people will differ on opinion and need: where to weld the piece. some people like to weld it flush, some opt to leave a little ledge for mounting purposes. either way is cool. one thing i would suggest but is not entriely necessaryis to leave tabs on your filler piece. then notch the frame to match these tabs, they will help hold the piece in place. if you are going to box the frame merely for looks, you can go with a thinner filler metal. hope this helps! good luck! PS when doing something like this, don't forget that certain things will be moved/changed to finish it. ie brake lines, fuel lines, wiring, etc.... __________________ Shamrock Customs Forever-in-the-Future Custom Shop 2009 Mitsubishi Lancer GTS daily driver 1956 Chevy Stepside rodstoration on winter hold

03-31-2004, 08:39 PM	#4
402GLH Registered User Join Date: Mar 2004 Posts: 37	More needed on longbeds ? My longbed has a 402 and it torques the dog out of the frame. I thought about boxing or adding something like a cushioned crossbar.. Course it needed new cab rubbers etc too so that made it worse.. __________________ 1972 Cheyenne Olive over Dark Green, Longbed 402BBC, TH400



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