Frame Swap - The 1947 - Present Chevrolet & GMC Truck Message Board Network

STOCKISH · 08-30-2010, 08:30 PM

Hey fellas. I found a 79 crew cab 4x4 frame that I would like to swap the whole thing for my 87 crew cab 2wd frame. Is this a direct swap? Do I need to use the mounts for the 73-80 cab and core support or the 81-87 cab and core support? I know the front frame horns are different but I can deal with that. Just need someone who had done this before with a positive answer. Thanks alot guys!

bluex · 08-31-2010, 01:19 AM

Use the mounts for the year of the frame. The difference is not in the cabs or core support but the actual brackets on the frame. They have different type holes in them and take different bottom bushings. Once you see both of them you will see the difference.

STOCKISH · 09-01-2010, 09:20 AM

Cool! If thats all that's involved I'm golden. Thanks alot.

Jonboy · 09-01-2010, 09:56 AM

If you are planning on running hte later front sheetmetal, the rail ends are just cut off at an angle. If you are going to run the earlier stuff, then you are ready to go.

08-30-2010, 08:30 PM	#1
STOCKISH Formerly- 1972SuperCheyenne Join Date: Oct 2008 Location: Wake Forest NC Posts: 5,782	Frame Swap Hey fellas. I found a 79 crew cab 4x4 frame that I would like to swap the whole thing for my 87 crew cab 2wd frame. Is this a direct swap? Do I need to use the mounts for the 73-80 cab and core support or the 81-87 cab and core support? I know the front frame horns are different but I can deal with that. Just need someone who had done this before with a positive answer. Thanks alot guys! __________________ --Josh My Build Thread:http://67-72chevytrucks.com/vboard/s...d.php?t=799218 A good crossthread is better than Loctite any day. Life is not about what you have, but who you have to share it with.

08-31-2010, 01:19 AM	#2
bluex Registered User Join Date: Jun 2004 Location: Spartanburg, SC Posts: 1,963	Re: Frame Swap Use the mounts for the year of the frame. The difference is not in the cabs or core support but the actual brackets on the frame. They have different type holes in them and take different bottom bushings. Once you see both of them you will see the difference. __________________ Paul '78 GMC Serria 15 Heavy Half. 361/NV3500/3.73. Former LWB NV3500 swap Trailing arm swap '98 ECSB Z71 daily driver -traded '03 burb. Family cruiser http://upstategmtrucks.com/

09-01-2010, 09:20 AM	#3
STOCKISH Formerly- 1972SuperCheyenne Join Date: Oct 2008 Location: Wake Forest NC Posts: 5,782	Re: Frame Swap Cool! If thats all that's involved I'm golden. Thanks alot. __________________ --Josh My Build Thread:http://67-72chevytrucks.com/vboard/s...d.php?t=799218 A good crossthread is better than Loctite any day. Life is not about what you have, but who you have to share it with.

09-01-2010, 09:56 AM	#4
Jonboy Slots go on anything! Join Date: May 2003 Location: Richardson, TX Posts: 5,957	Re: Frame Swap If you are planning on running hte later front sheetmetal, the rail ends are just cut off at an angle. If you are going to run the earlier stuff, then you are ready to go. __________________ 1974 Jimmy- 5.3/4L80e/NP241



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