Engine Crossmember? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Baketown Scotty** · 01-11-2025, 06:33 PM

This is the engine crossmember that came in my 1966 GMC Suburban 4WD. Is it stock? The top two bolts on each side were bolted to the upper frame rail but the bottom holes did not line up and the were tack welded to the lower frame rails. I’m trying to make sure I have an original crossmember and go from there as I am going to attempt to put an LS motor in. Is there a better way to go about that swap?

**Baketown Scotty** · Yesterday, 03:33 PM

Anyone?

**MusicMan70** · Today, 12:54 PM

Just so you're not shouting at the wind; I found this link with frame photos of another GMC 4wd.

It might add some clarity as far as the crossmember being original which I'm guessing it is not.

I also searched the Parts sections looking for originals as well and did not find anything that looked like your photo.

https://www.67-72chevytrucks.com/vbo...rossmember+4wd

BobS · Today, 02:48 PM

Not stock. The crossmember looks like a 67-69 GMC 4x4 with V-6.

Bob

**MusicMan70** · Today, 03:05 PM

Another link with photos of which BobS refers to.

https://www.67-72chevytrucks.com/vbo...C+4x4+with+V-6

01-11-2025, 06:33 PM	#1
Baketown Scotty Junior Member Join Date: Oct 2005 Location: Bakersfield, CA Posts: 320	Engine Crossmember? This is the engine crossmember that came in my 1966 GMC Suburban 4WD. Is it stock? The top two bolts on each side were bolted to the upper frame rail but the bottom holes did not line up and the were tack welded to the lower frame rails. I’m trying to make sure I have an original crossmember and go from there as I am going to attempt to put an LS motor in. Is there a better way to go about that swap? Attached Images __________________ 1964 Chevy Suburban 4x4 1966 GMC Suburban 4x4

Yesterday, 03:33 PM	#2
Baketown Scotty Junior Member Join Date: Oct 2005 Location: Bakersfield, CA Posts: 320	Re: Engine Crossmember? Anyone? __________________ 1964 Chevy Suburban 4x4 1966 GMC Suburban 4x4

Today, 12:54 PM	#3
MusicMan70 Senior Member Join Date: Feb 2011 Location: Corona, CA Posts: 1,846	Re: Engine Crossmember? Just so you're not shouting at the wind; I found this link with frame photos of another GMC 4wd. It might add some clarity as far as the crossmember being original which I'm guessing it is not. I also searched the Parts sections looking for originals as well and did not find anything that looked like your photo. https://www.67-72chevytrucks.com/vbo...rossmember+4wd __________________ MusicMan70 1961 GMC Suburban

Today, 02:48 PM	#4
BobS Senior Member Join Date: May 2001 Location: West Central Minnesota Posts: 569	Re: Engine Crossmember? Not stock. The crossmember looks like a 67-69 GMC 4x4 with V-6. Bob __________________ V-6....only GMC Trucks have it! 62 GMC W5000 NAPCO-V6 65 GMC 2500 NAPCO Panel-V6 66 GMC 1000-V6 66 GMC 1500-V6 67 GMC K1500-SBC (originally a KM-V6) 68 GMC C1500-V6 68 GMC C1500-V6 68 GMC Suburban C2500 70 Chevy K20-SBC 71 Chevy C30 Longhorn-SBC 72 GMC Suburban C1500-BBC 72 Chevy C10-SBC 72 GMC C5500-ToroFlow Diesel

Today, 03:05 PM	#5
MusicMan70 Senior Member Join Date: Feb 2011 Location: Corona, CA Posts: 1,846	Re: Engine Crossmember? Another link with photos of which BobS refers to. https://www.67-72chevytrucks.com/vbo...C+4x4+with+V-6 __________________ MusicMan70 1961 GMC Suburban



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