70-71 Chassis Differences - The 1947 - Present Chevrolet & GMC Truck Message Board Network

turbochevy · 01-31-2007, 04:28 PM

What are the differences if any? I have a few ideas I am chasing around. Thanks in advance.

1969k10stepside · 01-31-2007, 05:00 PM

Nothing frame related, IIRC. 71 has disc brakes though as to the earlier models wich have drum brakes.

Aarons72s · 01-31-2007, 05:00 PM

The frame itself the rear brake hosemounts to the right upper coil spring bracket where the 71 up frame the brake hose mounts right above the center of the dif. that is the only frame difference. Of coarse the 70 has drum brakes and 6 lugs where as the 71 has five lugs and front disc brakes. And also the spindles and center link differ from the 70 and 71 but are easily swaped vice versa. I hope I supplied the info you needed.

BowTieOgre · 01-31-2007, 05:25 PM

And the rearend got wider halfway thru '70 right?

centsless · 01-31-2007, 06:34 PM

I put a 1969 frame under my 1972 and the only differences were the brake hose mounting points. The front brake hoses are in front of the crossmember on one and behind the crossmember on the other. I chiseled them off and welded them on the 69 frame. I changed the crossmember behind the rear axle for the rear brake hose. I chiseled the rivets off and bolted the new crossmember in with grade 8 bolts. Everything else was a direct bolt on.Hope that helps.
Bob

01-31-2007, 04:28 PM	#1
turbochevy Senior Member Join Date: Nov 2006 Location: Chatsworth, So Cal! Posts: 226	70-71 Chassis Differences What are the differences if any? I have a few ideas I am chasing around. Thanks in advance. __________________ 1970 Chevy C 10 SWB

01-31-2007, 05:00 PM	#2
1969k10stepside Registered User Join Date: Mar 2006 Location: USA Posts: 21,020	Re: 70-71 Chassis Differences Nothing frame related, IIRC. 71 has disc brakes though as to the earlier models wich have drum brakes. Last edited by 1969k10stepside; 01-31-2007 at 05:02 PM.

01-31-2007, 05:00 PM	#3
Aarons72s Registered User Join Date: Apr 2006 Location: oklahoma Posts: 10,670	Re: 70-71 Chassis Differences The frame itself the rear brake hosemounts to the right upper coil spring bracket where the 71 up frame the brake hose mounts right above the center of the dif. that is the only frame difference. Of coarse the 70 has drum brakes and 6 lugs where as the 71 has five lugs and front disc brakes. And also the spindles and center link differ from the 70 and 71 but are easily swaped vice versa. I hope I supplied the info you needed.

01-31-2007, 05:25 PM	#4
BowTieOgre Registered User Join Date: Mar 2006 Location: Pensacola, FL Posts: 1,461	Re: 70-71 Chassis Differences And the rearend got wider halfway thru '70 right? __________________ 1986 C10 - LWB, 305/700r4, posi, vortec heads

01-31-2007, 06:34 PM	#5
centsless sufficiently talented fool Join Date: Jun 2006 Location: Forest Hill, MD Posts: 2,231	Re: 70-71 Chassis Differences I put a 1969 frame under my 1972 and the only differences were the brake hose mounting points. The front brake hoses are in front of the crossmember on one and behind the crossmember on the other. I chiseled them off and welded them on the 69 frame. I changed the crossmember behind the rear axle for the rear brake hose. I chiseled the rivets off and bolted the new crossmember in with grade 8 bolts. Everything else was a direct bolt on.Hope that helps. Bob __________________ "it's impossible to be surrounded by idiots when you are part of the circle" 2003 Suburban 2002 Pontiac Montana 1981 Corvette 1966 Impala Convertible Click here to support the board



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