Will a 67 c20 lwb fit on 79 4x4 lwb frame - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**landarts** · 05-11-2010, 11:24 AM

I was wondering if anyone knows if a 67 c20 lwb will fit on a 79 4x4 lwb frame. I have a chance to pick up a 79 4x4 lwb cheap. I would like to transfer over my 67 c20 lwb body to that frame. Any thoughts !

jim

CHEVYSHORT · 05-11-2010, 11:37 AM

Whats lwb stand for?

**landarts** · 05-11-2010, 11:46 AM

Long wheelbase

CharlieBrown · 05-11-2010, 12:08 PM

Frame widths are different

**71blksuper4x4** · 05-11-2010, 12:45 PM

It will work, but it's going to take some fabrication. Cab mounts will need to be reworked and the wheelbase I believe, is off just a bit, so you will probably need to cut the frame down. Trevor

**leddzepp** · 05-11-2010, 12:46 PM

Quote:

Originally Posted by CHEVYSHORT

Whats lwb stand for?

long wheelbase

CHEVYSHORT · 05-11-2010, 04:29 PM

I'm not sure of the wheel base, but I have had both trucks & I know for a fact the rear cab mounts are out side the frame rails on 68-72 and the 73-87 is on the inside. I have cut spring purches off & moved them & modified several frames to work for my off roading trucks. It can be done & it wouldn't be too hard to do. I think the frame rails are the same distance appart. My uncle used one of my rear axels out of my 80s trucks in his 72, & I doubt that would of worked if the frames were different width. I also know a guy who put a 79 4x4 chassis under his 48 chevy truck. I would go for it!!

slow72 · 05-11-2010, 06:49 PM

The wheelbase on the 79 is longer. I'm not sure exactly how much but i'd guess somewhere around 3". My cousin put his 72 GMC on a 76 3/4 ton 4x4 frame with a 12v cummins. He cut the 72 cab mounts off his old frame and welded them to the 76 frame. He didn't shorten the frame at all and it shows. There is about a 2" gap between the cab and bed as well as the rear wheels are not centered in the wheel wells. It doesn't look bad and didn't take him very long to do, but i imagine it would involve a lot of work.

Codypaul · 05-11-2010, 08:58 PM

Quote:

Originally Posted by slow72

The wheelbase on the 79 is longer. I'm not sure exactly how much but i'd guess somewhere around 3". My cousin put his 72 GMC on a 76 3/4 ton 4x4 frame with a 12v cummins. He cut the 72 cab mounts off his old frame and welded them to the 76 frame. He didn't shorten the frame at all and it shows. There is about a 2" gap between the cab and bed as well as the rear wheels are not centered in the wheel wells. It doesn't look bad and didn't take him very long to do, but i imagine it would involve a lot of work.

my truck looks exactly like that

Longhorn Man · 05-11-2010, 09:52 PM

127 inch wheel base verses 131 inch wheel base.
You'll need to relocate the rear axle, possibly hack a few inches off the tail end of the frame, some reworking of cab mounts, and core support mounts, and also a custom bodu lift. The rear of the frame is much higher on a 73 - 87, so you'll need to jack the cab up to match.

05-11-2010, 11:24 AM	#1
landarts landarts Join Date: May 2005 Location: Star, Idaho Posts: 1,354	Will a 67 c20 lwb fit on 79 4x4 lwb frame I was wondering if anyone knows if a 67 c20 lwb will fit on a 79 4x4 lwb frame. I have a chance to pick up a 79 4x4 lwb cheap. I would like to transfer over my 67 c20 lwb body to that frame. Any thoughts ! jim

05-11-2010, 11:37 AM	#2
CHEVYSHORT Registered User Join Date: May 2010 Location: Maineville, Ohio Posts: 5	Re: Will a 67 c20 lwb fit on 79 4x4 lwb frame Whats lwb stand for? __________________ 87 Chevy ShortBed

05-11-2010, 11:46 AM	#3
landarts landarts Join Date: May 2005 Location: Star, Idaho Posts: 1,354	Re: Will a 67 c20 lwb fit on 79 4x4 lwb frame Long wheelbase Last edited by landarts; 05-11-2010 at 02:13 PM.

05-11-2010, 12:08 PM	#4
CharlieBrown Registered User Join Date: Dec 2007 Location: Van Buren Arkansas Posts: 137	Re: Will a 67 c20 lwb fit on 79 4x4 lwb frame Frame widths are different __________________ 1972 Cheyenne Super..owned since 1978 1972 Surburban 4x4 1972 Cheyenne 4x4 3/4 ton.....sold 1972 Cheyenne 2wd...named Death Row

05-11-2010, 12:45 PM	#5
71blksuper4x4 SWB 4x4 Collector Join Date: Jun 2001 Location: Osage City, KS Posts: 5,151	Re: Will a 67 c20 lwb fit on 79 4x4 lwb frame It will work, but it's going to take some fabrication. Cab mounts will need to be reworked and the wheelbase I believe, is off just a bit, so you will probably need to cut the frame down. Trevor __________________ TREVOR 1970 CST swb 4x4 (speedwarning,cruise,tilt,tach,8track, original red shoulder belts,tow hooks) 1972 Jimmy (soon to be Hickey cloned) 1971 Cheyenne Super 4x4 swb (tilt,tach,buckets, original blue shoulder belts,am/fm,cruise,tow hooks, dealer 8 track) 1972 Cheyenne Super K20 4x4 Custom Camper (tilt, tach, am/fm, tow hooks, bed toolbox, aux gas tank 1972 Cheyenne Super Crew Cab K30 4x4 Duramax, Allison, np205, buckets, tow hooks (CURRENT PROJECT) http://67-72chevytrucks.com/vboard/s...d.php?t=624819 1989 V3500 Crew Cab (454tbi, NV4500, np205) 1970 Chevelle SS (LS5 454,th400,8track,buckets,tach) :2004 Jeep Wrangler Rubicon (daily driver) WTB: 1968-70 Cruise Control Lever

05-11-2010, 04:29 PM	#7
CHEVYSHORT Registered User Join Date: May 2010 Location: Maineville, Ohio Posts: 5	Re: Will a 67 c20 lwb fit on 79 4x4 lwb frame I'm not sure of the wheel base, but I have had both trucks & I know for a fact the rear cab mounts are out side the frame rails on 68-72 and the 73-87 is on the inside. I have cut spring purches off & moved them & modified several frames to work for my off roading trucks. It can be done & it wouldn't be too hard to do. I think the frame rails are the same distance appart. My uncle used one of my rear axels out of my 80s trucks in his 72, & I doubt that would of worked if the frames were different width. I also know a guy who put a 79 4x4 chassis under his 48 chevy truck. I would go for it!! __________________ 87 Chevy ShortBed

05-11-2010, 06:49 PM	#8
slow72 Registered User Join Date: Sep 2008 Location: Regina, Saskatchewan Posts: 43	Re: Will a 67 c20 lwb fit on 79 4x4 lwb frame The wheelbase on the 79 is longer. I'm not sure exactly how much but i'd guess somewhere around 3". My cousin put his 72 GMC on a 76 3/4 ton 4x4 frame with a 12v cummins. He cut the 72 cab mounts off his old frame and welded them to the 76 frame. He didn't shorten the frame at all and it shows. There is about a 2" gap between the cab and bed as well as the rear wheels are not centered in the wheel wells. It doesn't look bad and didn't take him very long to do, but i imagine it would involve a lot of work. __________________ 1972 GMC LWB, 250, 4sp 2010 GMC Sierra 6.6 CCSB

05-11-2010, 09:52 PM	#10
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Will a 67 c20 lwb fit on 79 4x4 lwb frame 127 inch wheel base verses 131 inch wheel base. You'll need to relocate the rear axle, possibly hack a few inches off the tail end of the frame, some reworking of cab mounts, and core support mounts, and also a custom bodu lift. The rear of the frame is much higher on a 73 - 87, so you'll need to jack the cab up to match.



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