69 GMC to 77 K5 frame swap?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Jbham88 · 10-08-2009, 01:02 AM

I have a 69 gmc swb, i have found a 77 k5 blazer for 1500 thats in decient shape. Just wanted to know if it will fit and how much of a hassel it is. Or if anyone has done this Thanks

OARNGESI · 10-08-2009, 03:42 AM

The frame on the k5 is shorter so youll have to cut down the bed like a foot infront of the wheels and build a body lift

Jbham88 · 10-08-2009, 10:59 AM

Thanks i dont want to cut my body at all

**GruntMoanCough** · 10-08-2009, 12:30 PM

Yes, I've done this a few times. You can lengthen the Blazer frame, but the body will sit a couple of inches higher due to how the bed sits on the frame.
The rad support mounts need to be moved back, the front cab mounts are close, and I forget off hand what needs doing with the rear cab mounts.
Steering column length needs to be changed.
I believe that there are threads on this topic, maybe in the projects and builds section.

Jbham88 · 10-08-2009, 01:42 PM

well I knew the body mounts were going to have to be changed but i was just trying to get the 5 lug setup and disc brakes and maybe save some money along with the 350 and sell my 327

10-08-2009, 01:02 AM	#1
Jbham88 Registered User Join Date: Jun 2009 Location: Hattiesburg Mississippi Posts: 64	69 GMC to 77 K5 frame swap?? I have a 69 gmc swb, i have found a 77 k5 blazer for 1500 thats in decient shape. Just wanted to know if it will fit and how much of a hassel it is. Or if anyone has done this Thanks __________________ 1986 GMC 4x4

10-08-2009, 03:42 AM	#2
OARNGESI Registered User Join Date: Sep 2008 Location: CASA GRANDE AZ Posts: 4,276	Re: 69 GMC to 77 K5 frame swap?? The frame on the k5 is shorter so youll have to cut down the bed like a foot infront of the wheels and build a body lift __________________ 70 SWB STEPSIDE 70 BLAZER 09 challenger

10-08-2009, 10:59 AM	#3
Jbham88 Registered User Join Date: Jun 2009 Location: Hattiesburg Mississippi Posts: 64	Re: 69 GMC to 77 K5 frame swap?? Thanks i dont want to cut my body at all __________________ 1986 GMC 4x4

10-08-2009, 12:30 PM	#4
GruntMoanCough Registered User Join Date: May 2009 Location: Pemberton, BC Posts: 1,075	Re: 69 GMC to 77 K5 frame swap?? Yes, I've done this a few times. You can lengthen the Blazer frame, but the body will sit a couple of inches higher due to how the bed sits on the frame. The rad support mounts need to be moved back, the front cab mounts are close, and I forget off hand what needs doing with the rear cab mounts. Steering column length needs to be changed. I believe that there are threads on this topic, maybe in the projects and builds section. __________________ My goal in life is to be as good a person as my dog already thinks I am - Unknown

10-08-2009, 01:42 PM	#5
Jbham88 Registered User Join Date: Jun 2009 Location: Hattiesburg Mississippi Posts: 64	Re: 69 GMC to 77 K5 frame swap?? well I knew the body mounts were going to have to be changed but i was just trying to get the 5 lug setup and disc brakes and maybe save some money along with the 350 and sell my 327 __________________ 1986 GMC 4x4

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