are 86 and 89 3/4 4X4 sub frames the same? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jonzcustomshop · 10-26-2010, 03:30 PM

I have an 89 suburban 3/4 ton 4X4 that has a bent frame, I just got a lead on a 86 suburban parts truck (also a 3/4 ton 4X4)

I am wondering if I can just switch the frames out? (

easier said than done I know!)

let me know if you know of any differences- thanks!

GmtGmt · 10-26-2010, 03:38 PM

does you Sub have Rear wheel ABS?
other then that it should be the same

jonzcustomshop · 10-26-2010, 04:02 PM

I will have to look, what is ABS?

oh- and what would be the difference if it does?

joe231 · 10-26-2010, 04:25 PM

RWAL (rear wheel anti-lock) brakes are useless anyway, don't worry about that.
Those frames should swap no problem...
Posted via Mobile Device

10-26-2010, 03:30 PM	#1
jonzcustomshop 1961 crewcab Join Date: Dec 2007 Location: missoula, mt Posts: 6,164	are 86 and 89 3/4 4X4 sub frames the same? I have an 89 suburban 3/4 ton 4X4 that has a bent frame, I just got a lead on a 86 suburban parts truck (also a 3/4 ton 4X4) I am wondering if I can just switch the frames out? ( easier said than done I know!) let me know if you know of any differences- thanks! __________________ 60 build: http://67-72chevytrucks.com/vboard/s...d.php?t=280904 61 crew build: http://67-72chevytrucks.com/vboard/s...d.php?t=646830 63 build: http://67-72chevytrucks.com/vboard/s...d.php?t=336537 64 'burb build: http://67-72chevytrucks.com/vboard/s...d.php?t=448681 65 'burb build: http://67-72chevytrucks.com/vboard/s...d.php?t=590715 65 build: http://67-72chevytrucks.com/vboard/s...d.php?t=281955

10-26-2010, 04:02 PM	#3
jonzcustomshop 1961 crewcab Join Date: Dec 2007 Location: missoula, mt Posts: 6,164	Re: are 86 and 89 3/4 4X4 sub frames the same? I will have to look, what is ABS? oh- and what would be the difference if it does? __________________ 60 build: http://67-72chevytrucks.com/vboard/s...d.php?t=280904 61 crew build: http://67-72chevytrucks.com/vboard/s...d.php?t=646830 63 build: http://67-72chevytrucks.com/vboard/s...d.php?t=336537 64 'burb build: http://67-72chevytrucks.com/vboard/s...d.php?t=448681 65 'burb build: http://67-72chevytrucks.com/vboard/s...d.php?t=590715 65 build: http://67-72chevytrucks.com/vboard/s...d.php?t=281955 Last edited by jonzcustomshop; 10-26-2010 at 04:03 PM.

10-26-2010, 04:25 PM	#4
joe231 Registered User Join Date: Dec 2007 Location: Palmer, Alaska Posts: 13,821	Re: are 86 and 89 3/4 4X4 sub frames the same? RWAL (rear wheel anti-lock) brakes are useless anyway, don't worry about that. Those frames should swap no problem... Posted via Mobile Device __________________ *CHEVY ONLY*



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