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*

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.