2wd to 4wd conversion ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

KJ72 · 02-18-2006, 08:55 PM

Hello everyone, I am new to your board and am restoring a 72 GMC suburban. I would like to put a later frame under it (73thru 91) Is this possible? What issues would I need to look out for? Any help would be appreciated.

**special-K** · 02-18-2006, 11:30 PM

Welcome.It`s your forum now.Not sure about the specifics,but the frames are different and will need some alteration.Definately body mount locations,I`m sure you realized already.Get the wheelbase measuirements hub center to hub center and go from there.Your`72 probably has leaf springs in the rear,right?You could use the parts from a 73-91 donor to adapt your`72 frame.

*Jr_Blazer_Boy* · 03-06-2006, 02:35 PM

Using a donor frame shouldnt be the problem. Check with DMV in your state and make sure that you wont have a problem with the title when finished. I know Calif has a problem with more than one vin. Then they issue a new one through the calif CHP office. I hear it can be a real pain in the fanny.

02-18-2006, 08:55 PM	#1
KJ72 Registered User Join Date: Feb 2006 Location: Oregon Posts: 1	2wd to 4wd conversion ? Hello everyone, I am new to your board and am restoring a 72 GMC suburban. I would like to put a later frame under it (73thru 91) Is this possible? What issues would I need to look out for? Any help would be appreciated.

02-18-2006, 11:30 PM	#2
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,863	Re: 2wd to 4wd conversion ? Welcome.It`s your forum now.Not sure about the specifics,but the frames are different and will need some alteration.Definately body mount locations,I`m sure you realized already.Get the wheelbase measuirements hub center to hub center and go from there.Your`72 probably has leaf springs in the rear,right?You could use the parts from a 73-91 donor to adapt your`72 frame. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

03-06-2006, 02:35 PM	#3
Jr_Blazer_Boy Account Suspended Join Date: Dec 2005 Location: Applegate Oregon Posts: 56	Re: 2wd to 4wd conversion ? Using a donor frame shouldnt be the problem. Check with DMV in your state and make sure that you wont have a problem with the title when finished. I know Calif has a problem with more than one vin. Then they issue a new one through the calif CHP office. I hear it can be a real pain in the fanny.



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