Cutting the frame - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72BLAZERDUDE · 10-30-2003, 09:48 AM

How hard is it to cut a hole in a crossmember. I want to run my exhaust through a rear crossmember and I was wondering if a hole saw would work. How hard is the frame. Anybody ever done this without a torch.

Huck · 10-30-2003, 10:06 AM

The frame is somewhat hardened but not near the harness of the new ones. You can drill it, cut it with a hack saw, power saw or torch pretty easy. Just minimize the size of the hole to retain some degree of frame stiffness as our frames are relatively weak with few strong crossmembers.

10-30-2003, 09:48 AM	#1
72BLAZERDUDE Registered User Join Date: Jan 2002 Location: WATAUGA,TX Posts: 660	Cutting the frame How hard is it to cut a hole in a crossmember. I want to run my exhaust through a rear crossmember and I was wondering if a hole saw would work. How hard is the frame. Anybody ever done this without a torch. __________________ 72 2wd 307/AT/AC/TILT WHEEL 78 JIMMY HIGH SIERRA

10-30-2003, 10:06 AM	#2
Huck Senior Member Join Date: Jun 2001 Location: Shelbyville, KY Posts: 3,269	The frame is somewhat hardened but not near the harness of the new ones. You can drill it, cut it with a hack saw, power saw or torch pretty easy. Just minimize the size of the hole to retain some degree of frame stiffness as our frames are relatively weak with few strong crossmembers.



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