4WD to 2WD with 87 chassis and 71 crossmember? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

6 Door King · 08-06-2013, 12:32 AM

To anyone that can help: Will a 71 crossmeber and disc brake front setup fit onto my 87 4x4 frame? I ask because I already have both, and I seem to remember that the upper and lower arms are the same for both the 67-72 style and 73-87 style halftons, correct? I am hoping this means the crossmembers are the same, and that my 4x4 frame has accomodations for the 2WD setup? Thanks to the suspension gurus.

**lolife99** · 08-08-2013, 06:26 PM

Has anyone done this swap, that can help?

andrewmp6 · 08-09-2013, 02:33 AM

On paper it should work but in the real world not sure.

6 Door King · 08-09-2013, 10:13 AM

Maybe I should pose my question differently. Are 67-72 2WD crossmembers the same as 73-87?

SCOTI · 08-09-2013, 06:15 PM

Quote:

Originally Posted by 6 Door King

Maybe I should pose my question differently. Are 67-72 2WD crossmembers the same as 73-87?

They are not identical, but they are similar & can/do interchange.

Quote:

I ask because I already have both, and I seem to remember that the upper and lower arms are the same for both the 67-72 style and 73-87 style halftons, correct?

The 67-72 a-arms are different vs. the 73-87 on 1/2 tons (bushings being the biggest diff).

08-06-2013, 12:32 AM	#1
6 Door King Registered User Join Date: Jun 2008 Location: Franklin Virginia Posts: 204	4WD to 2WD with 87 chassis and 71 crossmember? To anyone that can help: Will a 71 crossmeber and disc brake front setup fit onto my 87 4x4 frame? I ask because I already have both, and I seem to remember that the upper and lower arms are the same for both the 67-72 style and 73-87 style halftons, correct? I am hoping this means the crossmembers are the same, and that my 4x4 frame has accomodations for the 2WD setup? Thanks to the suspension gurus. __________________ 1954 3100 Nova Subframe, Pontiac Posi, roller for now1967 C-10 SWB 350/350/Posi. Soon to be Crew Cab! 1978 Crew Cab Dually roller 1982 C-30 Rollback, 454, 4 speed 2004 K1500 Suburban Z71 5.3 Kid Mover

08-08-2013, 06:26 PM	#2
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	Re: 4WD to 2WD with 87 chassis and 71 crossmember? Has anyone done this swap, that can help? __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

08-09-2013, 02:33 AM	#3
andrewmp6 Registered User Join Date: Jan 2009 Location: Louisville,Ky Posts: 5,811	Re: 4WD to 2WD with 87 chassis and 71 crossmember? On paper it should work but in the real world not sure.

08-09-2013, 10:13 AM	#4
6 Door King Registered User Join Date: Jun 2008 Location: Franklin Virginia Posts: 204	Re: 4WD to 2WD with 87 chassis and 71 crossmember? Maybe I should pose my question differently. Are 67-72 2WD crossmembers the same as 73-87? __________________ 1954 3100 Nova Subframe, Pontiac Posi, roller for now1967 C-10 SWB 350/350/Posi. Soon to be Crew Cab! 1978 Crew Cab Dually roller 1982 C-30 Rollback, 454, 4 speed 2004 K1500 Suburban Z71 5.3 Kid Mover



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